diff --git a/cinelerra-5.1/cinelerra/mainmenu.C b/cinelerra-5.1/cinelerra/mainmenu.C
index 5735f8c9..18e2466d 100644
--- a/cinelerra-5.1/cinelerra/mainmenu.C
+++ b/cinelerra-5.1/cinelerra/mainmenu.C
@@ -1607,9 +1607,18 @@ ShowVWindow::ShowVWindow(MWindow *mwindow)
 }
 int ShowVWindow::handle_event()
 {
-	mwindow->gui->unlock_window();
-	mwindow->show_vwindow(1);
-	mwindow->gui->lock_window("ShowVWindow::handle_event");
+
+		mwindow->gui->unlock_window();
+		if( !mwindow->session->show_vwindow )
+			mwindow->show_vwindow(1);
+		else
+			mwindow->hide_vwindow();
+		mwindow->gui->lock_window("ShowVWindow::handle_event");
+		set_checked(mwindow->session->show_vwindow);
+
+//	mwindow->gui->unlock_window();
+//	mwindow->show_vwindow(1);
+//	mwindow->gui->lock_window("ShowVWindow::handle_event");
 	return 1;
 }
 
@@ -1621,9 +1630,18 @@ ShowAWindow::ShowAWindow(MWindow *mwindow)
 }
 int ShowAWindow::handle_event()
 {
-	mwindow->gui->unlock_window();
-	mwindow->show_awindow();
-	mwindow->gui->lock_window("ShowAWindow::handle_event");
+		mwindow->gui->unlock_window();
+		if( !mwindow->session->show_awindow )
+			mwindow->show_awindow();
+		else
+			mwindow->hide_awindow();
+		mwindow->gui->lock_window("ShowAWindow::handle_event");
+		set_checked(mwindow->session->show_awindow);
+
+
+//	mwindow->gui->unlock_window();
+//	mwindow->show_awindow();
+//	mwindow->gui->lock_window("ShowAWindow::handle_event");
 	return 1;
 }
 
@@ -1635,9 +1653,17 @@ ShowCWindow::ShowCWindow(MWindow *mwindow)
 }
 int ShowCWindow::handle_event()
 {
-	mwindow->gui->unlock_window();
-	mwindow->show_cwindow();
-	mwindow->gui->lock_window("ShowCWindow::handle_event");
+		mwindow->gui->unlock_window();
+		if( !mwindow->session->show_cwindow )
+			mwindow->show_cwindow();
+		else
+			mwindow->hide_cwindow();
+		mwindow->gui->lock_window("ShowCWindow::handle_event");
+		set_checked(mwindow->session->show_cwindow);
+
+//	mwindow->gui->unlock_window();
+//	mwindow->show_cwindow();
+//	mwindow->gui->lock_window("ShowCWindow::handle_event");
 	return 1;
 }
 
@@ -1672,9 +1698,18 @@ ShowLWindow::ShowLWindow(MWindow *mwindow)
 }
 int ShowLWindow::handle_event()
 {
-	mwindow->gui->unlock_window();
-	mwindow->show_lwindow();
-	mwindow->gui->lock_window("ShowLWindow::handle_event");
+
+		mwindow->gui->unlock_window();
+		if( !mwindow->session->show_lwindow )
+			mwindow->show_lwindow();
+		else
+			mwindow->hide_lwindow();
+		mwindow->gui->lock_window("ShowLWindow::handle_event");
+		set_checked(mwindow->session->show_lwindow);
+
+//	mwindow->gui->unlock_window();
+//	mwindow->show_lwindow();
+//	mwindow->gui->lock_window("ShowLWindow::handle_event");
 	return 1;
 }
 
diff --git a/cinelerra-5.1/cinelerra/mwindow.C b/cinelerra-5.1/cinelerra/mwindow.C
index f245018a..c25c2bdf 100644
--- a/cinelerra-5.1/cinelerra/mwindow.C
+++ b/cinelerra-5.1/cinelerra/mwindow.C
@@ -2997,6 +2997,36 @@ void MWindow::show_vwindow(int raise)
 	gui->mainmenu->show_vwindow->set_checked(1);
 }
 
+
+void MWindow::hide_vwindow()
+{
+	session->show_vwindow = 0;
+	int total_running = 0;
+
+	for(int j = 0; j < vwindows.size(); j++) {
+		VWindow *vwindow = vwindows[j];
+		if( !vwindow->is_running() ) continue;
+		total_running++;
+		if( !raise && !vwindow->gui->is_hidden() ) continue;
+		vwindow->gui->lock_window("MWindow::show_vwindow");
+		vwindow->gui->hide_window(0);
+		//vwindow->gui->raise_window();
+		//vwindow->gui->flush();
+		vwindow->gui->unlock_window();
+	}
+// If no windows visible
+	if( !total_running )
+		get_viewer(1, DEFAULT_VWINDOW);
+
+	gui->mainmenu->show_vwindow->set_checked(0);
+
+//
+//	vwindow->gui->lock_window("MWindow::show_vwindow");
+//	vwindow->gui->hide_window();
+//	vwindow->gui->unlock_window();
+}
+
+
 void MWindow::show_awindow()
 {
 	session->show_awindow = 1;
@@ -3008,6 +3038,18 @@ void MWindow::show_awindow()
 	gui->mainmenu->show_awindow->set_checked(1);
 }
 
+void MWindow::hide_awindow()
+{
+	session->show_awindow = 0;
+
+	awindow->gui->lock_window("MWindow::show_awindow");
+	awindow->gui->hide_window();
+	awindow->gui->unlock_window();
+	gui->mainmenu->show_awindow->set_checked(0);
+}
+
+
+
 char *MWindow::get_cwindow_display()
 {
 	char *x11_host = screens < 2 || session->window_config == 0 ?
@@ -3023,6 +3065,18 @@ void MWindow::show_cwindow()
 	gui->mainmenu->show_cwindow->set_checked(1);
 }
 
+
+void MWindow::hide_cwindow()
+{
+	session->show_cwindow = 0;
+
+	cwindow->gui->lock_window("MWindow::show_cwindow");
+	cwindow->gui->hide_window();
+	cwindow->gui->unlock_window();
+	gui->mainmenu->show_cwindow->set_checked(0);
+}
+
+
 void MWindow::show_gwindow()
 {
 	session->show_gwindow = 1;
@@ -3035,6 +3089,7 @@ void MWindow::show_gwindow()
 
 	gui->mainmenu->show_gwindow->set_checked(1);
 }
+
 void MWindow::hide_gwindow()
 {
 	session->show_gwindow = 0;
@@ -3042,6 +3097,8 @@ void MWindow::hide_gwindow()
 	gwindow->gui->lock_window("MWindow::show_gwindow");
 	gwindow->gui->hide_window();
 	gwindow->gui->unlock_window();
+	
+	gui->mainmenu->show_gwindow->set_checked(0);
 }
 
 void MWindow::show_lwindow()
@@ -3055,6 +3112,18 @@ void MWindow::show_lwindow()
 	gui->mainmenu->show_lwindow->set_checked(1);
 }
 
+void MWindow::hide_lwindow()
+{
+	session->show_lwindow = 0;
+
+	lwindow->gui->lock_window("MWindow::show_lwindow");
+	lwindow->gui->hide_window();
+	lwindow->gui->unlock_window();
+	gui->mainmenu->show_lwindow->set_checked(0);
+}
+
+
+
 void MWindow::restore_windows()
 {
 	gui->unlock_window();
diff --git a/cinelerra-5.1/cinelerra/mwindow.h b/cinelerra-5.1/cinelerra/mwindow.h
index 6a4e2fb6..a4508e67 100644
--- a/cinelerra-5.1/cinelerra/mwindow.h
+++ b/cinelerra-5.1/cinelerra/mwindow.h
@@ -210,9 +210,13 @@ public:
 	int create_ref(Asset *asset, EDL *ref);
 // Show windows
 	void show_vwindow(int raise);
+	void hide_vwindow();
 	void show_awindow();
-	void show_lwindow();
+	void hide_awindow();
 	void show_cwindow();
+	void hide_cwindow();
+	void show_lwindow();
+	void hide_lwindow();
 	void show_gwindow();
 	void hide_gwindow();
 	void restore_windows();