afflicts my system also. I notice if you dont move on to another task, and keep trying the menu, it eventually pops open properly. logging out does fix it.
Here is a thread with screen shots showing it happening http://ubuntuforums.org/showthread.php?p=10502127#post10502127 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. https://bugs.launchpad.net/bugs/718712 Title: MENU REMNANTS CORRUPT SCREEN _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp