This was bug 931473, bug apparently not fully fixed. I think I've seen this happen once at least.
** Summary changed: - Application menus sometimes rendered hidden + Menus appear empty (only shadow) ** Also affects: compiz Importance: Undecided Status: New -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/948059 Title: Menus appear empty (only shadow) To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/948059/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp