diff -ur '--exclude=*.mk' '--exclude=mandelbulber' mandelbulber0.94/src/callbacks.cpp mandelbulber0.94-quit_fix/src/callbacks.cpp
--- mandelbulber0.94/src/callbacks.cpp	2010-10-10 11:47:11.000000000 +0100
+++ mandelbulber0.94-quit_fix/src/callbacks.cpp	2010-10-19 11:19:10.000000000 +0100
@@ -181,11 +181,11 @@
 }
 
 //----------- close program
-gboolean delete_event(GtkWidget *widget, GdkEvent *event, gpointer data)
+gboolean StopRenderingAndQuit(GtkWidget *widget, GdkEvent *event, gpointer data)
 {
-	programClosed = true;
-	printf("Rendering terminated\n");
-	return FALSE;
+	StopRendering(widget, data);
+	gtk_main_quit();
+	printf("Quitting\n");
 }
 
 gboolean WindowReconfigured(GtkWindow *window, GdkEvent *event, gpointer data)
@@ -261,11 +261,6 @@
 	return true;
 }
 
-//------------- destroy program
-void destroy(GtkWidget *widget, gpointer data)
-{
-	gtk_main_quit();
-}
 
 void StartRendering(GtkWidget *widget, gpointer data)
 {
diff -ur '--exclude=*.mk' '--exclude=mandelbulber' mandelbulber0.94/src/callbacks.h mandelbulber0.94-quit_fix/src/callbacks.h
--- mandelbulber0.94/src/callbacks.h	2010-10-09 19:54:57.000000000 +0100
+++ mandelbulber0.94-quit_fix/src/callbacks.h	2010-10-19 11:12:32.000000000 +0100
@@ -17,7 +17,7 @@
 gboolean CallerTimerLoop(GtkWidget *widget);
 gboolean motion_notify_event(GtkWidget *widget, GdkEventMotion *event);
 gboolean pressed_button_on_image(GtkWidget *widget, GdkEventButton *event);
-gboolean delete_event(GtkWidget *widget, GdkEvent *event, gpointer data);
+gboolean StopRenderingAndQuit(GtkWidget *widget, GdkEvent *event, gpointer data);
 gboolean WindowReconfigured(GtkWindow *window, GdkEvent *event, gpointer data);
 gboolean on_darea_expose(GtkWidget *widget, GdkEventExpose *event, gpointer user_data);
 gboolean on_dareaPalette_expose(GtkWidget *widget, GdkEventExpose *event, gpointer user_data);
@@ -33,7 +33,6 @@
 void PressedSaveImagePNG16Alpha(GtkWidget *widget, gpointer data);
 void PressedOkDialogFiles(GtkWidget *widget, gpointer data);
 void PressedCancelDialogFiles(GtkWidget *widget, gpointer data);
-void destroy(GtkWidget *widget, gpointer data);
 void PressedNavigatorUp(GtkWidget *widget, gpointer data);
 void PressedNavigatorDown(GtkWidget *widget, gpointer data);
 void PressedNavigatorLeft(GtkWidget *widget, gpointer data);
diff -ur '--exclude=*.mk' '--exclude=mandelbulber' mandelbulber0.94/src/interface.cpp mandelbulber0.94-quit_fix/src/interface.cpp
--- mandelbulber0.94/src/interface.cpp	2010-10-03 18:44:32.000000000 +0100
+++ mandelbulber0.94-quit_fix/src/interface.cpp	2010-10-19 11:20:45.000000000 +0100
@@ -839,8 +839,7 @@
 	//------------- glowne okno renderowania
 	window2 = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 	gtk_window_set_title(GTK_WINDOW(window2), "Mandelbulb Render Window");
-	g_signal_connect(G_OBJECT(window2), "destroy", G_CALLBACK(gtk_main_quit), NULL);
-	g_signal_connect(G_OBJECT(window2), "delete_event", G_CALLBACK(gtk_main_quit), NULL);
+	g_signal_connect(G_OBJECT(window2), "delete_event", G_CALLBACK(StopRenderingAndQuit), NULL);
 	gtk_widget_add_events(GTK_WIDGET(window2), GDK_CONFIGURE);
   g_signal_connect(G_OBJECT(window2), "configure-event", G_CALLBACK(WindowReconfigured), NULL);
 
@@ -885,8 +884,7 @@
 
 	window_histogram = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 	gtk_window_set_title(GTK_WINDOW(window_histogram), "left - number of iterations (max 64) / right - number of steps (max. 1000)");
-	g_signal_connect(G_OBJECT(window_histogram), "destroy", G_CALLBACK(gtk_main_quit), NULL);
-	g_signal_connect(G_OBJECT(window_histogram), "delete_event", G_CALLBACK(gtk_main_quit), NULL);
+	g_signal_connect(G_OBJECT(window_histogram), "delete_event", G_CALLBACK(StopRenderingAndQuit), NULL);
 
 	//glowny box w oknie
 	GtkWidget *box2 = gtk_vbox_new(FALSE, 0);
@@ -905,8 +903,7 @@
 	window_interface = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 	gtk_window_set_title(GTK_WINDOW(window_interface), "Mandelbulber (default.fract)");
 	gtk_container_set_border_width(GTK_CONTAINER(window_interface), 10);
-	g_signal_connect(G_OBJECT(window_interface), "delete_event", G_CALLBACK(delete_event), NULL);
-	g_signal_connect(G_OBJECT(window_interface), "destroy", G_CALLBACK(destroy), NULL);
+	g_signal_connect(G_OBJECT(window_interface), "delete_event", G_CALLBACK(StopRenderingAndQuit), NULL);
 
 	//tabs
 	Interface.tabs = gtk_notebook_new();