Did you have a custom clearlooks theme installed for your use? What do you call "edit the Clearlooks theme"? Changing the GTK theme by example? Could you get a backtrace of gnome-panel or other application when that happens using gdb
attach gdb to the panel before changing theme: - gdb -p $(pidof gnome-panel) (gdb) continue change the theme, if the panel crash you will get a gdb prompt, then type "thread apply ally bt" and copy that to a comment -- Changing theme kills Gnome https://launchpad.net/bugs/40848 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs