According to upstream, this is a bug in xorg-server ( https://bugs.freedesktop.org/show_bug.cgi?id=34427 )
I tried the proposed patch ( https://bugs.freedesktop.org/attachment.cgi?id=43859 ) and it fixed this bug for me. ** Bug watch added: freedesktop.org Bugzilla #34427 http://bugs.freedesktop.org/show_bug.cgi?id=34427 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/726807 Title: drawing of drop down boxes produces artifacts temporarily _______________________________________________ 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