--- src/gconf-editor-window.c.orig	2008-10-04 23:52:56.290131089 +0800
+++ src/gconf-editor-window.c	2008-10-04 23:52:45.313464508 +0800
@@ -1460,7 +1460,13 @@
 	GError *error;
 	
 	gtk_window_set_default_size (GTK_WINDOW (window), 700, 550);
-
+/*	Set RGBA colormap   */
+	GdkScreen *screen = gtk_widget_get_screen(window);
+	GdkColormap *colormap = gdk_screen_get_rgba_colormap (screen);
+	if (colormap && gdk_screen_is_composited (screen)){
+		gtk_widget_set_default_colormap(colormap);
+	}
+/*	End set RGBA colormap   */
 	vbox = gtk_vbox_new (FALSE, 0);
 	gtk_container_add (GTK_CONTAINER (window), vbox);