The same problem rose after I upgraded to Ubuntu Edgy. And I had another problem linked to this issue : my alt+tab and ctrl+alt+tab didn't work. I solved this issue by renaming all my .gnome and .gnome2 pref folders thus forcing gnome to recreate them.
-- Window don't get focus https://launchpad.net/bugs/59068 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs