I have the same with up-to-date edgy, and no special effects turned on (no AIGLX, XGL, compiz, just plain GNOME with metacity). The effect is that your theme is gone, and you are stuck with the old hard-edged theme and colours.
-- g-s-d crashes on startup under edgy https://launchpad.net/bugs/60477 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
