diff --git a/gtk2_ardour/SConscript b/gtk2_ardour/SConscript
index bc314f2fa4..22ef8bdd66 100644
--- a/gtk2_ardour/SConscript
+++ b/gtk2_ardour/SConscript
@@ -273,6 +273,8 @@ if env['VST']:
 
 if env['LV2']:
 	gtkardour.Append (CCFLAGS="-DHAVE_SLV2")
+	gtkardour.Merge ([libraries['slv2']])
+
 
 if gtkardour['GTKOSX']:
 	extra_sources += gtkosx_files
diff --git a/gtk2_ardour/ardbg b/gtk2_ardour/ardbg
index 063b2b1b6d..cdb640d63e 100755
--- a/gtk2_ardour/ardbg
+++ b/gtk2_ardour/ardbg
@@ -2,4 +2,5 @@
 dir=`dirname "$0"`
 . $dir/ardev_common.sh
 LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
+export ARDOUR_INSIDE_GDB=1
 exec gdb $EXECUTABLE "$@"
diff --git a/gtk2_ardour/ardour.menus b/gtk2_ardour/ardour.menus
index 1964fb8193..40432d5381 100644
--- a/gtk2_ardour/ardour.menus
+++ b/gtk2_ardour/ardour.menus
@@ -132,6 +132,9 @@
 			<menuitem action='cycle-edit-point'/>
 			<menuitem action='cycle-edit-point-with-marker'/>
 			<menuitem action='toggle-edit-mode'/>
+			<separator/>
+			<menuitem action='boost-region-gain'/>
+			<menuitem action='cut-region-gain'/>
           </menu>
         </menu>         
 	<menu name='Select' action='Select'>
diff --git a/gtk2_ardour/ardour3_ui_default.conf b/gtk2_ardour/ardour3_ui_default.conf
index 78e40f5515..bfcb616a93 100644
--- a/gtk2_ardour/ardour3_ui_default.conf
+++ b/gtk2_ardour/ardour3_ui_default.conf
@@ -4,10 +4,10 @@
     <Option name="ui-rc-file" value="ardour3_ui_dark.rc"/>
   </UI>
   <Canvas>
-    <Option name="waveform" value="373737a7"/>
-    <Option name="waveform fill" value="73737378"/>
+    <Option name="waveform" value="000000d6"/>
+    <Option name="waveform fill" value="0b225a78"/>
     <Option name="clipped waveform" value="ff0000e5"/>
-    <Option name="region base" value="bfbfc1aa"/>
+    <Option name="region base" value="b2bcd3aa"/>
     <Option name="selected region base" value="565693a6"/>
     <Option name="midi frame base" value="698f9d6d"/>
     <Option name="audio track base" value="c6d3d868"/>
diff --git a/gtk2_ardour/ardour_ui.cc b/gtk2_ardour/ardour_ui.cc
index c10b0d73d0..90d0e77adc 100644
--- a/gtk2_ardour/ardour_ui.cc
+++ b/gtk2_ardour/ardour_ui.cc
@@ -198,7 +198,6 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 	connection_editor = 0;
 	_will_create_new_session_automatically = false;
 	new_session_dialog = 0;
-	loading_dialog = 0;
 	add_route_dialog = 0;
 	route_params = 0;
 	option_editor = 0;
@@ -279,12 +278,7 @@ ARDOUR_UI::create_engine ()
 		return 0;
 	}
 
-#ifdef __APPLE__
-	// OS X where everything is sllloooowwww
-	loading_dialog->set_message (_("Starting audio engine"));
-	loading_dialog->show_all ();
-	flush_pending ();
-#endif 				
+	loading_message (_("Starting audio engine"));
 
 	try { 
 		engine = new ARDOUR::AudioEngine (ARDOUR_COMMAND_LINE::jack_client_name);
@@ -623,13 +617,6 @@ Please consider the possibilities, and perhaps (re)start JACK."));
 	win.run ();
 }
 
-static bool
-_hide_splash (gpointer arg)
-{
-	((ARDOUR_UI*)arg)->hide_splash();
-	return false;
-}
-
 void
 ARDOUR_UI::startup ()
 {
@@ -637,10 +624,6 @@ ARDOUR_UI::startup ()
 
 	new_session_dialog = new NewSessionDialog();
 
-	// in 4 seconds, hide the splash screen 
-
-	Glib::signal_timeout().connect (bind (sigc::ptr_fun (_hide_splash), this), 4000);
-
 	bool backend_audio_is_running = EngineControl::engine_running();
 	XMLNode* audio_setup = Config->extra_xml ("AudioSetup");
 	
@@ -2113,8 +2096,6 @@ ARDOUR_UI::load_cmdline_session (const Glib::ustring& session_name, const Glib::
 	/* lets just try to load it */
 	
 	if (create_engine ()) {
-		hide_splash ();
-		loading_dialog->hide ();
 		backend_audio_error (false, new_session_dialog);
 		return -1;
 	}
@@ -2218,6 +2199,19 @@ ARDOUR_UI::build_session_from_nsd (const Glib::ustring& session_path, const Glib
 	return 0;
 }
 
+void
+ARDOUR_UI::end_loading_messages ()
+{
+	// hide_splash ();
+}
+
+void
+ARDOUR_UI::loading_message (const std::string& msg)
+{
+	show_splash ();
+	splash->message (msg);
+	flush_pending ();
+}
 	
 bool
 ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be_new)
@@ -2227,14 +2221,6 @@ ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be
 	Glib::ustring session_path;
 	Glib::ustring template_name;
 
-	if (!loading_dialog) {
-		loading_dialog = new MessageDialog (*new_session_dialog, 
-						    "",
-						    false,
-						    Gtk::MESSAGE_INFO,
-						    Gtk::BUTTONS_NONE);
-	}
-
 	int response = Gtk::RESPONSE_NONE;
 
 	if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
@@ -2275,8 +2261,8 @@ ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be
 	do {
 		new_session_dialog->set_have_engine (backend_audio_is_running);
 		new_session_dialog->present ();
+		end_loading_messages ();
 		response = new_session_dialog->run ();
-		loading_dialog->hide ();
 		
 		_session_is_new = false;
 		
@@ -2308,7 +2294,6 @@ ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be
 		if (create_engine ()) {
 
 			backend_audio_error (!backend_audio_is_running, new_session_dialog);
-			loading_dialog->hide ();
 			flush_pending ();
 
 			new_session_dialog->set_existing_session (false);
@@ -2318,7 +2303,6 @@ ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be
 			goto try_again;
 		}
 
-		loading_dialog->hide ();
 		backend_audio_is_running = true;		
 			
 		if (response == Gtk::RESPONSE_OK) {
@@ -2402,7 +2386,6 @@ ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be
 
 		  try_again:
 			if (response == Gtk::RESPONSE_NONE) {
-				loading_dialog->hide ();
 				new_session_dialog->set_existing_session (false);
 				new_session_dialog->reset ();
 			}
@@ -2412,7 +2395,6 @@ ARDOUR_UI::get_session_parameters (bool backend_audio_is_running, bool should_be
 
   done:
 	show();
-	loading_dialog->hide ();
 	new_session_dialog->hide();
 	new_session_dialog->reset();
 	goto_editor_window ();
@@ -2462,14 +2444,7 @@ ARDOUR_UI::load_session (const Glib::ustring& path, const Glib::ustring& snap_na
 		goto out;
 	}
 
-#ifdef __APPLE__
-	// OS X where everything is sllloooowwww
-	if (loading_dialog) {
-		loading_dialog->set_markup (_("Please wait while Ardour loads your session"));
-		flush_pending ();
-	}
-#endif
-
+	loading_message (_("Please wait while Ardour loads your session"));
 	disable_screen_updates ();
 
 	try {
@@ -2647,6 +2622,7 @@ ARDOUR_UI::show_splash ()
 	}
 
 	splash->show ();
+	splash->queue_draw ();
 	splash->get_window()->process_updates (true);
 	flush_pending ();
 }
diff --git a/gtk2_ardour/ardour_ui.h b/gtk2_ardour/ardour_ui.h
index 25abe8f14c..247d4cf6b3 100644
--- a/gtk2_ardour/ardour_ui.h
+++ b/gtk2_ardour/ardour_ui.h
@@ -768,7 +768,9 @@ class ARDOUR_UI : public Gtkmm2ext::UI
 			      Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag, const char *msg);
 	Gtk::Label status_bar_label;
 	Gtk::ToggleButton error_log_button;
-	Gtk::MessageDialog* loading_dialog;
+	
+	void loading_message (const std::string& msg);
+	void end_loading_messages ();
 
 	void platform_specific ();
 	void platform_setup ();
diff --git a/gtk2_ardour/ardour_ui_dependents.cc b/gtk2_ardour/ardour_ui_dependents.cc
index 6472bc5ef4..d4dda9c540 100644
--- a/gtk2_ardour/ardour_ui_dependents.cc
+++ b/gtk2_ardour/ardour_ui_dependents.cc
@@ -31,6 +31,7 @@
 #include "public_editor.h"
 #include "mixer_ui.h"
 #include "keyboard.h"
+#include "splash.h"
 #include "route_params_ui.h"
 #include "i18n.h"
 
@@ -106,9 +107,21 @@ ARDOUR_UI::connect_dependents_to_session (ARDOUR::Session *s)
 	s->restore_history ("");
 }
 
+static bool
+_hide_splash (gpointer arg)
+{
+	((ARDOUR_UI*)arg)->hide_splash();
+	return false;
+}
+
 void
 ARDOUR_UI::goto_editor_window ()
 {
+	if (splash && splash->is_visible()) {
+		// in 2 seconds, hide the splash screen 
+		Glib::signal_timeout().connect (bind (sigc::ptr_fun (_hide_splash), this), 2000);
+	}
+
 	editor->show_window ();
 	editor->present ();
 	flush_pending ();
diff --git a/gtk2_ardour/au_pluginui.h b/gtk2_ardour/au_pluginui.h
index 0e31b35e03..e15d48b922 100644
--- a/gtk2_ardour/au_pluginui.h
+++ b/gtk2_ardour/au_pluginui.h
@@ -36,6 +36,10 @@ class AUPluginUI : public PlugUIBase, public Gtk::VBox
 
 	void on_realize ();
 	void on_show ();
+	void on_hide ();
+	bool on_map_event (GdkEventAny*);
+	bool on_focus_in_event (GdkEventFocus*);
+	bool on_focus_out_event (GdkEventFocus*);
 
 	OSStatus carbon_event (EventHandlerCallRef nextHandlerRef, EventRef event);
 
@@ -60,6 +64,7 @@ class AUPluginUI : public PlugUIBase, public Gtk::VBox
  	EventHandlerRef      carbon_event_handler;
 	bool                 carbon_parented;
 	bool                 cocoa_parented;
+	bool                 _activating_from_app;
 
 	void test_view_support (bool&, bool&);
 	bool test_cocoa_view_support ();
diff --git a/gtk2_ardour/au_pluginui.mm b/gtk2_ardour/au_pluginui.mm
index 51f73199f7..d2bdecfe60 100644
--- a/gtk2_ardour/au_pluginui.mm
+++ b/gtk2_ardour/au_pluginui.mm
@@ -35,10 +35,12 @@ AUPluginUI::AUPluginUI (boost::shared_ptr<PluginInsert> insert)
 	bool has_carbon;
 	bool has_cocoa;
 
+	_activating_from_app = false;
 	carbon_parented = false;
 	cocoa_parented = false;
 	cocoa_parent = 0;
 	cocoa_window = 0;
+	au_view = 0;
 
 	test_view_support (has_carbon, has_cocoa);
 
@@ -250,7 +252,7 @@ AUPluginUI::create_carbon_view (bool generic)
 						  kWindowNoShadowAttribute|
 						  kWindowNoTitleBarAttribute);
 
-	if ((err = CreateNewWindow(kDocumentWindowClass, attr, &r, &carbon_window)) != noErr) {
+	if ((err = CreateNewWindow(kFloatingWindowClass, attr, &r, &carbon_window)) != noErr) {
 		error << string_compose (_("AUPluginUI: cannot create carbon window (err: %1)"), err) << endmsg;
 		return -1;
 	}
@@ -314,7 +316,10 @@ AUPluginUI::activate ()
 	
 	if (carbon_parented) {
 		[cocoa_parent makeKeyAndOrderFront:nil];
+		cerr << "APP activated, activate carbon window\n";
+		_activating_from_app = true;
 		ActivateWindow (carbon_window, TRUE);
+		_activating_from_app = false;
 	} 
 }
 
@@ -338,17 +343,26 @@ AUPluginUI::carbon_event (EventHandlerCallRef nextHandlerRef, EventRef event)
 	ClickActivationResult howToHandleClick;
 	NSWindow* win = get_nswindow ();
 
+	cerr << "window " << win << " carbon event type " << eventKind << endl;
+
 	switch (eventKind) {
 	case kEventWindowHandleActivate:
+		cerr << "carbon window activated\n";
+		if (_activating_from_app) {
+			cerr << "app activation, ignore window activation\n";
+			return noErr;
+		}
 		[win makeMainWindow];
 		return eventNotHandledErr;
 		break;
 
 	case kEventWindowHandleDeactivate:
+		cerr << "carbon window deactivated\n";
 		return eventNotHandledErr;
 		break;
 		
 	case kEventWindowGetClickActivation:
+		cerr << "carbon window CLICK activated\n";
 		howToHandleClick = kActivateAndHandleClick;
 		SetEventParameter(event, kEventParamClickActivation, typeClickActivationResult, 
 				  sizeof(ClickActivationResult), &howToHandleClick);
@@ -470,13 +484,27 @@ AUPluginUI::parent_cocoa_window ()
 		newContentSize.width += (newFrame.size.width - currentFrame.size.width);
 		newContentSize.height += (newFrame.size.height - currentFrame.size.height);
 		
+#ifdef PACK_COCOA_INTO_GTK_WINDOW
+		NSView* view = [win contentView];
+
+		[win setContentSize:newContentSize];
+		[view addSubview:scroll_view]; 
+#else
 		[cocoa_window setContentSize:newContentSize];
 		[cocoa_window setContentView:scroll_view];
+#endif
 		
 	} else {
 
+#ifdef PACK_COCOA_INTO_GTK_WINDOW
+		NSView* view = [win contentView];
+
+		[win setContentSize:au_view_frame.size];
+		[view addSubview:au_view];
+#else
 		[cocoa_window setContentSize:au_view_frame.size];
 		[cocoa_window setContentView:au_view];
+#endif
 
 	}
 
@@ -497,16 +525,16 @@ AUPluginUI::parent_cocoa_window ()
 	[cocoa_window setFrame:view_frame display:NO];
 
 	/* make top level window big enough to hold cocoa window and titlebar */
-	
+		
 	content_frame.size.width = view_frame.size.width;
 	content_frame.size.height = view_frame.size.height + titlebar_height;
 
 	[win setFrame:content_frame display:NO];
 
 	/* now make cocoa window a child of this top level */
-
+	
 	[win addChildWindow:cocoa_window ordered:NSWindowAbove];
-	// [win setLevel:NSFloatingWindowLevel];
+	[win setLevel:NSFloatingWindowLevel];
 	[win setHidesOnDeactivate:YES];
 
 	cocoa_parented = true;
@@ -519,7 +547,7 @@ AUPluginUI::on_realize ()
 {
 	VBox::on_realize ();
 
-	if (cocoa_window) {
+	if (au_view) {
 		
 		if (parent_cocoa_window ()) {
 		}
@@ -532,6 +560,27 @@ AUPluginUI::on_realize ()
 	}
 }
 
+void
+AUPluginUI::on_hide ()
+{
+	// VBox::on_hide ();
+	cerr << "AU plugin window hidden\n";
+}
+
+bool
+AUPluginUI::on_map_event (GdkEventAny* ev)
+{
+	cerr << "AU plugin map event\n";
+
+	if (au_view) {
+		show_all ();
+	} else if (carbon_window) {
+		[cocoa_parent setIsVisible:YES];
+		ShowWindow (carbon_window);
+	}
+	return false;
+}
+
 void
 AUPluginUI::on_show ()
 {
@@ -539,10 +588,11 @@ AUPluginUI::on_show ()
 
 	VBox::on_show ();
 
-	if (cocoa_window) {
-		[cocoa_window setIsVisible:YES];
+	if (au_view) {
+		show_all ();
 	} else if (carbon_window) {
 		[cocoa_parent setIsVisible:YES];
+		ShowWindow (carbon_window);
 	}
 }
 
@@ -565,3 +615,17 @@ create_au_gui (boost::shared_ptr<PluginInsert> plugin_insert, VBox** box)
 	(*box) = aup;
 	return aup;
 }
+
+bool
+AUPluginUI::on_focus_in_event (GdkEventFocus* ev)
+{
+	cerr << "au plugin focus in\n";
+	return false;
+}
+
+bool
+AUPluginUI::on_focus_out_event (GdkEventFocus* ev)
+{
+	cerr << "au plugin focus out\n";
+	return false;
+}
diff --git a/gtk2_ardour/editor.h b/gtk2_ardour/editor.h
index 62031bea64..c8e9589c02 100644
--- a/gtk2_ardour/editor.h
+++ b/gtk2_ardour/editor.h
@@ -1048,6 +1048,7 @@ class Editor : public PublicEditor
 	void reverse_region ();
 	void normalize_region ();
 	void denormalize_region ();
+	void adjust_region_scale_amplitude (bool up);
 	void quantize_region ();
 
 	void audition_region_from_region_list ();
diff --git a/gtk2_ardour/editor_actions.cc b/gtk2_ardour/editor_actions.cc
index ae576dada4..2009b36f93 100644
--- a/gtk2_ardour/editor_actions.cc
+++ b/gtk2_ardour/editor_actions.cc
@@ -356,8 +356,13 @@ Editor::register_actions ()
 	ActionManager::session_sensitive_actions.push_back (act);
 	act = ActionManager::register_action (editor_actions, "normalize-region", _("Normalize Region"), mem_fun(*this, &Editor::normalize_region));
 	ActionManager::session_sensitive_actions.push_back (act);
+	act = ActionManager::register_action (editor_actions, "boost-region-gain", _("Boost Region Gain"), bind (mem_fun(*this, &Editor::adjust_region_scale_amplitude), true));
+	ActionManager::session_sensitive_actions.push_back (act);
+	act = ActionManager::register_action (editor_actions, "cut-region-gain", _("Cut Region Gain"), bind (mem_fun(*this, &Editor::adjust_region_scale_amplitude), false));
+	ActionManager::session_sensitive_actions.push_back (act);
 	act = ActionManager::register_action (editor_actions, "quantize-region", _("Quantize Region"), mem_fun(*this, &Editor::quantize_region));
 	ActionManager::session_sensitive_actions.push_back (act);
+
 	act = ActionManager::register_action (editor_actions, "crop", _("Crop"), mem_fun(*this, &Editor::crop_region_to_selection));
 	ActionManager::session_sensitive_actions.push_back (act);
 	act = ActionManager::register_action (editor_actions, "insert-chunk", _("Insert Chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f));
diff --git a/gtk2_ardour/editor_mixer.cc b/gtk2_ardour/editor_mixer.cc
index 0f432cc628..a85c3a4feb 100644
--- a/gtk2_ardour/editor_mixer.cc
+++ b/gtk2_ardour/editor_mixer.cc
@@ -173,7 +173,10 @@ Editor::set_selected_mixer_strip (TimeAxisView& view)
 		current_mixer_strip = 0;
 	}
 
-	cms_new (rt->route ());
+	current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
+					      *session,
+					      rt->route(), false);
+	current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 	
 	if (show) {
 		show_editor_mixer (true);
diff --git a/gtk2_ardour/editor_ops.cc b/gtk2_ardour/editor_ops.cc
index a81a6e6965..33a0e6920c 100644
--- a/gtk2_ardour/editor_ops.cc
+++ b/gtk2_ardour/editor_ops.cc
@@ -49,6 +49,7 @@
 #include <ardour/region_factory.h>
 #include <ardour/playlist_factory.h>
 #include <ardour/reverse.h>
+#include <ardour/dB.h>
 #include <ardour/quantize.h>
 
 #include "ardour_ui.h"
@@ -66,6 +67,7 @@
 #include "gtk-custom-hruler.h"
 #include "gui_thread.h"
 #include "keyboard.h"
+#include "utils.h"
 
 #include "i18n.h"
 
@@ -4119,6 +4121,8 @@ Editor::denormalize_region ()
 		return;
 	}
 
+	ExclusiveRegionSelection (*this, entered_regionview);
+
 	if (selection->regions.empty()) {
 		return;
 	}
@@ -4137,6 +4141,62 @@ Editor::denormalize_region ()
 	commit_reversible_command ();
 }
 
+void
+Editor::adjust_region_scale_amplitude (bool up)
+{
+	if (!session) {
+		return;
+	}
+
+	ExclusiveRegionSelection (*this, entered_regionview);
+
+	if (selection->regions.empty()) {
+		return;
+	}
+
+	begin_reversible_command ("denormalize");
+
+	for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
+		AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
+		if (!arv)
+			continue;
+		XMLNode &before = arv->region()->get_state();
+		
+		double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
+		
+		cerr << "slider pos for " << arv->audio_region()->scale_amplitude ()
+		     << " = " << fraction
+		     << endl;
+
+		if (up) {
+			fraction += 0.05;
+			fraction = min (fraction, 1.0);
+		} else {
+			fraction -= 0.05;
+			fraction = max (fraction, 0.0);
+		}
+
+		if (!up && fraction <= 0) {
+			continue;
+		}
+
+		if (up && fraction >= 1.0) {
+			continue;
+		}
+
+		fraction = slider_position_to_gain (fraction);
+		fraction = coefficient_to_dB (fraction);
+		fraction = dB_to_coefficient (fraction);
+		
+		cerr << "set scale amp for " << arv->audio_region()->name() << " to " << fraction << endl;
+
+		arv->audio_region()->set_scale_amplitude (fraction);
+		session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
+	}
+
+	commit_reversible_command ();
+}
+
 
 void
 Editor::reverse_region ()
diff --git a/gtk2_ardour/plugin_ui.cc b/gtk2_ardour/plugin_ui.cc
index 66a1427763..dad6ba2c52 100644
--- a/gtk2_ardour/plugin_ui.cc
+++ b/gtk2_ardour/plugin_ui.cc
@@ -67,6 +67,9 @@ PluginUIWindow::PluginUIWindow (boost::shared_ptr<PluginInsert> insert, nframes6
 	bool have_gui = false;
 	non_gtk_gui = false;
 
+	Label* label = manage (new Label());
+	label->set_markup ("<b>THIS IS THE PLUGIN UI</b>");
+
 	if (insert->plugin()->has_editor()) {
 		switch (insert->type()) {
 		case ARDOUR::VST:
@@ -74,7 +77,10 @@ PluginUIWindow::PluginUIWindow (boost::shared_ptr<PluginInsert> insert, nframes6
 			break;
 
 		case ARDOUR::AudioUnit:
-			have_gui = create_audiounit_editor (insert);
+			//have_gui = create_audiounit_editor (insert);
+			have_gui = true;
+			get_vbox()->pack_start (*label, false, false);
+			cerr << "#*#*#*#*#*#*#*#*## PACK " << label << " INTO PLUGIN UI\n";
 			break;
 			
 		case ARDOUR::LADSPA:
@@ -82,8 +88,13 @@ PluginUIWindow::PluginUIWindow (boost::shared_ptr<PluginInsert> insert, nframes6
 			break;
 
 		default:
+#ifndef VST_SUPPORT
 			error << _("unknown type of editor-supplying plugin (note: no VST support in this version of ardour)")
 			      << endmsg;
+#else
+			error << _("unknown type of editor-supplying plugin")
+			      << endmsg;
+#endif
 			throw failed_constructor ();
 		}
 
@@ -106,9 +117,10 @@ PluginUIWindow::PluginUIWindow (boost::shared_ptr<PluginInsert> insert, nframes6
 	set_name ("PluginEditor");
 	add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 
-	signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window*> (this)));
+	signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window*> (this)), false);
 	insert->GoingAway.connect (mem_fun(*this, &PluginUIWindow::plugin_going_away));
 
+#if 0
 	gint h = _pluginui->get_preferred_height ();
 	gint w = _pluginui->get_preferred_width ();
 
@@ -122,12 +134,37 @@ PluginUIWindow::PluginUIWindow (boost::shared_ptr<PluginInsert> insert, nframes6
 	}
 
 	set_default_size (w, h); 
+#endif
 }
 
 PluginUIWindow::~PluginUIWindow ()
 {
 }
 
+void
+PluginUIWindow::on_show ()
+{
+	cerr << "PluginWindow shown\n";
+		
+	ArdourDialog::on_show ();
+	Glib::ListHandle<Widget*> kids (get_vbox()->get_children());
+	
+	cerr << "send show to " << kids.size() << " children of this plugin UI\n";
+
+	for (Glib::ListHandle<Widget*>::iterator x = kids.begin(); x != kids.end(); ++x) {
+		cerr << "\tSend show to " << (*x) << endl;
+		(*x)->show ();
+	}
+	cerr << "!! send done\n";
+}
+
+void
+PluginUIWindow::on_hide ()
+{
+	cerr << "PluginWindow hidden\n";
+	ArdourDialog::on_hide ();
+}
+
 bool
 PluginUIWindow::create_vst_editor(boost::shared_ptr<PluginInsert> insert)
 {
@@ -162,6 +199,7 @@ PluginUIWindow::create_audiounit_editor (boost::shared_ptr<PluginInsert> insert)
 #else
 	VBox* box;
 	_pluginui = create_au_gui (insert, &box);
+	cerr << "#*#*#*#*#*#*#*#*## PACK " << box << " INTO PLUGIN UI\n";
 	get_vbox()->add (*box);
 	non_gtk_gui = true;
 
@@ -177,9 +215,11 @@ PluginUIWindow::app_activated (bool yn)
 {
 #if defined (HAVE_AUDIOUNITS) && defined(GTKOSX)
 	if (yn) {
-		_pluginui->activate ();
+		if (_pluginui) {
+			_pluginui->activate ();
+		}
 	}
-	cerr << "activated ? " << yn << endl;
+	cerr << "APP activated ? " << yn << endl;
 #endif
 }
 
@@ -208,7 +248,9 @@ PluginUIWindow::plugin_going_away ()
 {
 	ENSURE_GUI_THREAD(mem_fun(*this, &PluginUIWindow::plugin_going_away));
 	
-	_pluginui->stop_updating(0);
+	if (_pluginui) {
+		_pluginui->stop_updating(0);
+	}
 	delete_when_idle (this);
 }
 
diff --git a/gtk2_ardour/plugin_ui.h b/gtk2_ardour/plugin_ui.h
index 2ae7507d7c..74f9c46424 100644
--- a/gtk2_ardour/plugin_ui.h
+++ b/gtk2_ardour/plugin_ui.h
@@ -210,9 +210,11 @@ class PluginUIWindow : public ArdourDialog
 
 	void resize_preferred();
 
-	virtual bool on_key_press_event (GdkEventKey*);
-	virtual bool on_key_release_event (GdkEventKey*);
-	
+	bool on_key_press_event (GdkEventKey*);
+	bool on_key_release_event (GdkEventKey*);
+	void on_show ();
+	void on_hide ();
+
   private:
 	PlugUIBase* _pluginui;
 	bool non_gtk_gui;
diff --git a/gtk2_ardour/processor_box.cc b/gtk2_ardour/processor_box.cc
index 7ccef4ea53..e012922e0f 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -1435,7 +1435,7 @@ ProcessorBox::route_name_changed (PluginUIWindow* plugin_ui, boost::weak_ptr<Plu
 string 
 ProcessorBox::generate_processor_title (boost::shared_ptr<PluginInsert> pi)
 {
-	string maker = pi->plugin()->maker();
+	string maker = pi->plugin()->maker() ? pi->plugin()->maker() : "";
 	string::size_type email_pos;
 
 	if ((email_pos = maker.find_first_of ('<')) != string::npos) {
diff --git a/gtk2_ardour/splash.cc b/gtk2_ardour/splash.cc
index eee108c70b..7f38c39588 100644
--- a/gtk2_ardour/splash.cc
+++ b/gtk2_ardour/splash.cc
@@ -30,25 +30,39 @@ Splash::Splash ()
 		throw failed_constructor();
 	}
 	
-	set_size_request (pixbuf->get_width(), pixbuf->get_height());
+	darea.set_size_request (pixbuf->get_width(), pixbuf->get_height());
 	set_type_hint (Gdk::WINDOW_TYPE_HINT_SPLASHSCREEN);
 	set_keep_above (true);
 	set_position (WIN_POS_CENTER);
-	add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
+	darea.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
+
+	layout = create_pango_layout ("");
+
+	darea.show ();
+	darea.signal_expose_event().connect (mem_fun (*this, &Splash::expose));
+
+	add (darea);
 }
 
+void
+Splash::on_realize ()
+{
+	Window::on_realize ();
+	layout->set_font_description (get_style()->get_font());
+}
+
+
 bool
 Splash::on_button_release_event (GdkEventButton* ev)
 {
 	hide ();
+	return true;
 }
 
 bool
-Splash::on_expose_event (GdkEventExpose* ev)
+Splash::expose (GdkEventExpose* ev)
 {
-	RefPtr<Gdk::Window> window = get_window();
-
-	Window::on_expose_event (ev);
+	RefPtr<Gdk::Window> window = darea.get_window();
 
 	window->draw_pixbuf (get_style()->get_bg_gc (STATE_NORMAL), pixbuf,
 			     ev->area.x, ev->area.y,
@@ -56,5 +70,22 @@ Splash::on_expose_event (GdkEventExpose* ev)
 			     ev->area.width, ev->area.height,
 			     Gdk::RGB_DITHER_NONE, 0, 0);
 
+	Glib::RefPtr<Gtk::Style> style = darea.get_style();
+	Glib::RefPtr<Gdk::GC> white = style->get_white_gc();
+
+	window->draw_layout (white, 10, pixbuf->get_height() - 30, layout);
+
 	return true;
 }
+
+void
+Splash::message (const string& msg)
+{
+	string str ("<b>");
+	str += msg;
+	str += "</b>";
+
+	layout->set_markup (str);
+	darea.queue_draw ();
+	get_window()->process_updates (true);
+}
diff --git a/gtk2_ardour/splash.h b/gtk2_ardour/splash.h
index 3ef717d08d..5ba5478941 100644
--- a/gtk2_ardour/splash.h
+++ b/gtk2_ardour/splash.h
@@ -21,6 +21,9 @@
 #define __ardour_gtk_splash_h__
 
 #include <gtkmm/window.h>
+#include <gtkmm/drawingarea.h>
+#include <gtkmm/box.h>
+#include <gtkmm/label.h>
 #include <gdkmm/pixbuf.h>
 
 class ARDOUR_UI;
@@ -31,11 +34,16 @@ class Splash : public Gtk::Window
 	Splash ();
 	~Splash () {}
 
-	bool on_expose_event (GdkEventExpose*);
+	bool expose (GdkEventExpose*);
 	bool on_button_release_event (GdkEventButton*);
+	void on_realize ();
 
+	void message (const std::string& msg);
+	
   private:
 	Glib::RefPtr<Gdk::Pixbuf> pixbuf;
+	Gtk::DrawingArea darea;
+	Glib::RefPtr<Pango::Layout> layout;
 };	
 
 #endif /* __ardour_gtk_splash_h__ */
diff --git a/libs/ardour/ardour/io.h b/libs/ardour/ardour/io.h
index bd3cfcc30e..0b82844f61 100644
--- a/libs/ardour/ardour/io.h
+++ b/libs/ardour/ardour/io.h
@@ -375,8 +375,9 @@ class IO : public Automatable, public Latent
 	bool ensure_inputs_locked (ChanCount, bool clear, void *src);
 	bool ensure_outputs_locked (ChanCount, bool clear, void *src);
 
-	int32_t find_input_port_hole ();
-	int32_t find_output_port_hole ();
+	std::string build_legal_port_name (DataType type, bool for_input);
+	int32_t find_input_port_hole (const char* base);
+	int32_t find_output_port_hole (const char* base);
 
 	void create_bundles_for_inputs_and_outputs ();
 	void setup_bundles_for_inputs_and_outputs ();
diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 9f19a21865..387c7f1238 100644
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -516,7 +516,7 @@ PluginInfoList
 AUPluginInfo::discover ()
 {
 	PluginInfoList plugs;
-
+	
 	discover_fx (plugs);
 	discover_music (plugs);
 
diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index 8ec97debd4..69502f9922 100644
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -1119,9 +1119,8 @@ AudioEngine::connect_to_jack (string client_name)
 	const char *server_name = NULL;
 
 	jack_client_name = client_name; /* might be reset below */
-
 	_jack = jack_client_open (jack_client_name.c_str(), options, &status, server_name);
-	
+
 	if (_jack == NULL) {
 
 		if (status & JackServerFailed) {
diff --git a/libs/ardour/io.cc b/libs/ardour/io.cc
index 8231218e63..babf1e451f 100644
--- a/libs/ardour/io.cc
+++ b/libs/ardour/io.cc
@@ -28,6 +28,7 @@
 
 #include <pbd/xml++.h>
 #include <pbd/replace_all.h>
+#include <pbd/unknown_type.h>
 
 #include <ardour/audioengine.h>
 #include <ardour/io.h>
@@ -612,7 +613,6 @@ int
 IO::add_output_port (string destination, void* src, DataType type)
 {
 	Port* our_port;
-	char name[64];
 
 	if (type == DataType::NIL)
 		type = _default_type;
@@ -630,15 +630,10 @@ IO::add_output_port (string destination, void* src, DataType type)
 		
 			/* Create a new output port */
 			
-			// FIXME: naming scheme for differently typed ports?
-			if (_output_maximum.get(type) == 1) {
-				snprintf (name, sizeof (name), _("%s/out"), _name.c_str());
-			} else {
-				snprintf (name, sizeof (name), _("%s/out %u"), _name.c_str(), find_output_port_hole());
-			}
+			string portname = build_legal_port_name (type, false);
 			
-			if ((our_port = _session.engine().register_output_port (type, name, _public_ports)) == 0) {
-				error << string_compose(_("IO: cannot register output port %1"), name) << endmsg;
+			if ((our_port = _session.engine().register_output_port (type, portname, _public_ports)) == 0) {
+				error << string_compose(_("IO: cannot register output port %1"), portname) << endmsg;
 				return -1;
 			}
 			
@@ -723,7 +718,6 @@ int
 IO::add_input_port (string source, void* src, DataType type)
 {
 	Port* our_port;
-	char name[64];
 	
 	if (type == DataType::NIL)
 		type = _default_type;
@@ -740,15 +734,10 @@ IO::add_input_port (string source, void* src, DataType type)
 
 			/* Create a new input port */
 			
-			// FIXME: naming scheme for differently typed ports?
-			if (_input_maximum.get(type) == 1) {
-				snprintf (name, sizeof (name), _("%s/in"), _name.c_str());
-			} else {
-				snprintf (name, sizeof (name), _("%s/in %u"), _name.c_str(), find_input_port_hole());
-			}
+			string portname = build_legal_port_name (type, true);
 
-			if ((our_port = _session.engine().register_input_port (type, name, _public_ports)) == 0) {
-				error << string_compose(_("IO: cannot register input port %1"), name) << endmsg;
+			if ((our_port = _session.engine().register_input_port (type, portname, _public_ports)) == 0) {
+				error << string_compose(_("IO: cannot register input port %1"), portname) << endmsg;
 				return -1;
 			}
 
@@ -845,18 +834,12 @@ IO::ensure_inputs_locked (ChanCount count, bool clear, void* src)
 		/* create any necessary new ports */
 		while (n_inputs().get(*t) < n) {
 
-			char buf[64];
-
-			if (_input_maximum.get(*t) == 1) {
-				snprintf (buf, sizeof (buf), _("%s/in"), _name.c_str());
-			} else {
-				snprintf (buf, sizeof (buf), _("%s/in %u"), _name.c_str(), find_input_port_hole());
-			}
+			string portname = build_legal_port_name (*t, true);
 
 			try {
 
-				if ((input_port = _session.engine().register_input_port (*t, buf, _public_ports)) == 0) {
-					error << string_compose(_("IO: cannot register input port %1"), buf) << endmsg;
+				if ((input_port = _session.engine().register_input_port (*t, portname, _public_ports)) == 0) {
+					error << string_compose(_("IO: cannot register input port %1"), portname) << endmsg;
 					return -1;
 				}
 			}
@@ -960,19 +943,11 @@ IO::ensure_io (ChanCount in, ChanCount out, bool clear, void* src)
 
 			while (n_inputs().get(*t) < nin) {
 
-				char buf[64];
-
-				/* Create a new input port */
-
-				if (_input_maximum.get(*t) == 1) {
-					snprintf (buf, sizeof (buf), _("%s/in"), _name.c_str());
-				} else {
-					snprintf (buf, sizeof (buf), _("%s/in %u"), _name.c_str(), find_input_port_hole());
-				}
+				string portname = build_legal_port_name (*t, true);
 
 				try {
-					if ((port = _session.engine().register_input_port (*t, buf, _public_ports)) == 0) {
-						error << string_compose(_("IO: cannot register input port %1"), buf) << endmsg;
+					if ((port = _session.engine().register_input_port (*t, portname, _public_ports)) == 0) {
+						error << string_compose(_("IO: cannot register input port %1"), portname) << endmsg;
 						return -1;
 					}
 				}
@@ -992,19 +967,11 @@ IO::ensure_io (ChanCount in, ChanCount out, bool clear, void* src)
 
 			while (n_outputs().get(*t) < nout) {
 
-				char buf[64];
-
-				/* Create a new output port */
-
-				if (_output_maximum.get(*t) == 1) {
-					snprintf (buf, sizeof (buf), _("%s/out"), _name.c_str());
-				} else {
-					snprintf (buf, sizeof (buf), _("%s/out %u"), _name.c_str(), find_output_port_hole());
-				}
-
+				string portname = build_legal_port_name (*t, false);
+				
 				try { 
-					if ((port = _session.engine().register_output_port (*t, buf, _public_ports)) == 0) {
-						error << string_compose(_("IO: cannot register output port %1"), buf) << endmsg;
+					if ((port = _session.engine().register_output_port (*t, portname, _public_ports)) == 0) {
+						error << string_compose(_("IO: cannot register output port %1"), portname) << endmsg;
 						return -1;
 					}
 				}
@@ -1115,16 +1082,10 @@ IO::ensure_outputs_locked (ChanCount count, bool clear, void* src)
 		/* create any necessary new ports */
 		while (n_outputs().get(*t) < n) {
 
-			char buf[64];
+			string portname = build_legal_port_name (*t, false);
 
-			if (_output_maximum.get(*t) == 1) {
-				snprintf (buf, sizeof (buf), _("%s/out"), _name.c_str());
-			} else {
-				snprintf (buf, sizeof (buf), _("%s/out %u"), _name.c_str(), find_output_port_hole());
-			}
-
-			if ((output_port = _session.engine().register_output_port (*t, buf, _public_ports)) == 0) {
-				error << string_compose(_("IO: cannot register output port %1"), buf) << endmsg;
+			if ((output_port = _session.engine().register_output_port (*t, portname, _public_ports)) == 0) {
+				error << string_compose(_("IO: cannot register output port %1"), portname) << endmsg;
 				return -1;
 			}
 
@@ -2290,8 +2251,62 @@ IO::transport_stopped (nframes_t frame)
 	_panner->transport_stopped (frame);
 }
 
+string
+IO::build_legal_port_name (DataType type, bool in)
+{
+	const int name_size = jack_port_name_size();
+	int limit;
+	string suffix;
+	int maxports;
+
+	if (type == DataType::AUDIO) {
+		suffix = _("audio");
+	} else if (type == DataType::MIDI) {
+		suffix = _("midi");
+	} else {
+		throw unknown_type();
+	}
+	
+	if (in) {
+		suffix += _("_in");
+		maxports = _input_maximum.get(type);
+	} else {
+		suffix += _("_out");
+		maxports = _output_maximum.get(type);
+	}
+	
+	if (maxports == 1) {
+		// allow space for the slash + the suffix
+		limit = name_size - _session.engine().client_name().length() - (suffix.length() + 1);
+		char buf[name_size+1];
+		snprintf (buf, name_size+1, ("%.*s/%s"), limit, _name.c_str(), suffix.c_str());
+		return string (buf);
+	} 
+	
+	// allow up to 4 digits for the output port number, plus the slash, suffix and extra space
+
+	limit = name_size - _session.engine().client_name().length() - (suffix.length() + 5);
+
+	char buf1[name_size+1];
+	char buf2[name_size+1];
+	
+	snprintf (buf1, name_size+1, ("%.*s/%s"), limit, _name.c_str(), suffix.c_str());
+	
+	int port_number;
+	
+	if (in) {
+		port_number = find_input_port_hole (buf1);
+	} else {
+		port_number = find_output_port_hole (buf1);
+	}
+	
+	snprintf (buf2, name_size+1, "%s %d", buf1, port_number);
+	
+	return string (buf2);
+}
+
 int32_t
-IO::find_input_port_hole ()
+IO::find_input_port_hole (const char* base)
 {
 	/* CALLER MUST HOLD IO LOCK */
 
@@ -2301,11 +2316,14 @@ IO::find_input_port_hole ()
 		return 1;
 	}
 
-	for (n = 1; n < UINT_MAX; ++n) {
+	/* we only allow up to 4 characters for the port number
+	 */
+
+	for (n = 1; n < 9999; ++n) {
 		char buf[jack_port_name_size()];
 		PortSet::iterator i = _inputs.begin();
 
-		snprintf (buf, jack_port_name_size(), _("%s/in %u"), _name.c_str(), n);
+		snprintf (buf, jack_port_name_size(), _("%s %u"), base, n);
 
 		for ( ; i != _inputs.end(); ++i) {
 			if (i->short_name() == buf) {
@@ -2321,7 +2339,7 @@ IO::find_input_port_hole ()
 }
 
 int32_t
-IO::find_output_port_hole ()
+IO::find_output_port_hole (const char* base)
 {
 	/* CALLER MUST HOLD IO LOCK */
 
@@ -2331,11 +2349,14 @@ IO::find_output_port_hole ()
 		return 1;
 	}
 
-	for (n = 1; n < UINT_MAX; ++n) {
+	/* we only allow up to 4 characters for the port number
+	 */
+
+	for (n = 1; n < 9999; ++n) {
 		char buf[jack_port_name_size()];
 		PortSet::iterator i = _outputs.begin();
 
-		snprintf (buf, jack_port_name_size(), _("%s/out %u"), _name.c_str(), n);
+		snprintf (buf, jack_port_name_size(), _("%s %u"), base, n);
 
 		for ( ; i != _outputs.end(); ++i) {
 			if (i->short_name() == buf) {
diff --git a/libs/ardour/rb_effect.cc b/libs/ardour/rb_effect.cc
index 7a948f6004..9711e5e4dc 100644
--- a/libs/ardour/rb_effect.cc
+++ b/libs/ardour/rb_effect.cc
@@ -74,9 +74,12 @@ RBEffect::run (boost::shared_ptr<AudioRegion> region)
 	nframes_t pos = 0;
 	int avail = 0;
 
+	double this_time_fraction = tsr.time_fraction * region->stretch ();
+	double this_pitch_fraction = tsr.pitch_fraction * region->shift ();
+
 	RubberBandStretcher stretcher (session.frame_rate(), region->n_channels(),
 				       (RubberBandStretcher::Options) tsr.opts,
-				       tsr.time_fraction, tsr.pitch_fraction);
+				       this_time_fraction, this_pitch_fraction);
 	
 	stretcher.setExpectedInputDuration(region->length());
 	stretcher.setDebugLevel(1);
@@ -91,14 +94,14 @@ RBEffect::run (boost::shared_ptr<AudioRegion> region)
 	   digits just to disambiguate close but not identical FX
 	*/
 
-	if (tsr.time_fraction == 1.0) {
-		snprintf (suffix, sizeof (suffix), "@%d", (int) floor (tsr.pitch_fraction * 100.0f));
-	} else if (tsr.pitch_fraction == 1.0) {
-		snprintf (suffix, sizeof (suffix), "@%d", (int) floor (tsr.time_fraction * 100.0f));
+	if (this_time_fraction == 1.0) {
+		snprintf (suffix, sizeof (suffix), "@%d", (int) floor (this_pitch_fraction * 100.0f));
+	} else if (this_pitch_fraction == 1.0) {
+		snprintf (suffix, sizeof (suffix), "@%d", (int) floor (this_time_fraction * 100.0f));
 	} else {
 		snprintf (suffix, sizeof (suffix), "@%d-%d", 
-			  (int) floor (tsr.time_fraction * 100.0f),
-			  (int) floor (tsr.pitch_fraction * 100.0f));
+			  (int) floor (this_time_fraction * 100.0f),
+			  (int) floor (this_pitch_fraction * 100.0f));
 	}
 
 	/* create new sources */
@@ -259,9 +262,8 @@ RBEffect::run (boost::shared_ptr<AudioRegion> region)
 		nframes_t start;
 		nframes_t length;
 
-		// note: tsr.time_fraction is a percentage of original length. 100 = no change, 
-		// 50 is half as long, 200 is twice as long, etc.
-		
+		// note: this_time_fraction is a ratio of original length. 1.0 = no change, 
+		// 0.5 is half as long, 2.0 is twice as long, etc.
 		
 		float stretch = (*x)->stretch() * (tsr.time_fraction/100.0);
 		float shift = (*x)->shift() * tsr.pitch_fraction;
diff --git a/libs/gtkmm2ext/binding_proxy.cc b/libs/gtkmm2ext/binding_proxy.cc
index 3a2f5bbbc8..90f95f82ef 100644
--- a/libs/gtkmm2ext/binding_proxy.cc
+++ b/libs/gtkmm2ext/binding_proxy.cc
@@ -32,13 +32,19 @@ using namespace std;
 using namespace PBD;
 
 BindingProxy::BindingProxy (Controllable& c)
-	: prompter (Gtk::WIN_POS_MOUSE, 30000, false),
+	: prompter (0),
 	  controllable (c),
 	  bind_button (2),
 	  bind_statemask (Gdk::CONTROL_MASK)
 
 {			  
-	prompter.signal_unmap_event().connect (mem_fun (*this, &BindingProxy::prompter_hiding));
+}
+
+BindingProxy::~BindingProxy ()
+{
+	if (prompter) {
+		delete prompter;
+	}
 }
 
 void
@@ -61,8 +67,12 @@ BindingProxy::button_press_handler (GdkEventButton *ev)
 	if ((ev->state & bind_statemask) && ev->button == bind_button) { 
 		if (Controllable::StartLearning (&controllable)) {
 			string prompt = _("operate controller now");
-			prompter.set_text (prompt);
-			prompter.touch (); // shows popup
+			if (prompter == 0) {
+				prompter = new PopUp (Gtk::WIN_POS_MOUSE, 30000, false);
+				prompter->signal_unmap_event().connect (mem_fun (*this, &BindingProxy::prompter_hiding));
+			}
+			prompter->set_text (prompt);
+			prompter->touch (); // shows popup
 			learning_connection = controllable.LearningFinished.connect (mem_fun (*this, &BindingProxy::learning_finished));
 		}
 		return true;
@@ -75,7 +85,9 @@ void
 BindingProxy::learning_finished ()
 {
 	learning_connection.disconnect ();
-	prompter.touch (); // hides popup
+	if (prompter) {
+		prompter->touch (); // hides popup
+	}
 }
 
 
diff --git a/libs/gtkmm2ext/gtkmm2ext/binding_proxy.h b/libs/gtkmm2ext/gtkmm2ext/binding_proxy.h
index a26c8ace2a..d8f37c7649 100644
--- a/libs/gtkmm2ext/gtkmm2ext/binding_proxy.h
+++ b/libs/gtkmm2ext/gtkmm2ext/binding_proxy.h
@@ -33,7 +33,7 @@ class BindingProxy : public sigc::trackable
 {
    public:
 	BindingProxy (PBD::Controllable&);
-	virtual ~BindingProxy() {}
+	virtual ~BindingProxy();
 	
 	void set_bind_button_state (guint button, guint statemask);
 	void get_bind_button_state (guint &button, guint &statemask);
@@ -42,7 +42,7 @@ class BindingProxy : public sigc::trackable
 
   protected:
 
-	Gtkmm2ext::PopUp     prompter;
+	Gtkmm2ext::PopUp*  prompter;
 	PBD::Controllable& controllable;
 	guint bind_button;
 	guint bind_statemask;
diff --git a/vst/ardevst b/vst/ardevst
index ee27cb3f32..cc21cde05b 100755
--- a/vst/ardevst
+++ b/vst/ardevst
@@ -1,5 +1,5 @@
 #!/bin/sh      
 export ARDOUR_PATH=../gtk2_ardour/icons:../gtk2_ardour/pixmaps:../gtk2_ardour
-export LD_LIBRARY_PATH=../gtk2_ardour:../libs/surfaces/control_protocol:../libs/ardour:../libs/midi++2:../libs/pbd:../libs/soundtouch:../libs/gtkmm2ext:../libs/sigc++2:../libs/glibmm2:../libs/gtkmm2/atk:../libs/gtkmm2/pango:../libs/gtkmm2/gdk:../libs/gtkmm2/gtk:../libs/libgnomecanvasmm:../libs/libsndfile:../libs/appleutility:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH=../gtk2_ardour:../libs/surfaces/control_protocol:../libs/ardour:../libs/midi++2:../libs/pbd:../libs/soundtouch:../libs/gtkmm2ext:../libs/sigc++2:../libs/glibmm2:../libs/gtkmm2/atk:../libs/gtkmm2/pango:../libs/gtkmm2/gdk:../libs/gtkmm2/gtk:../libs/libgnomecanvasmm:../libs/libsndfile:../libs/appleutility:../libs/rubberband:../libs/vamp-sdk:$LD_LIBRARY_PATH
 export GTK_PATH=$PWD/../libs/clearlooks:~/.ardour2
 exec wine ./ardour_vst.exe.so "$@"