Cannot reproduce on this system (uptodate feisty with i915 graphics), using your steps. I just get an empty screen in gthumb. Can you perhaps give some more information (graphics card, possible error messages/dumps?)
-- gthumb crashes when open file and directory are moved or deleted https://launchpad.net/bugs/90717 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
