reducing color depth helped for me, too. attaching my new xorg.conf with relatively minimal modifications.
** Attachment added: "xorg.conf" http://launchpadlibrarian.net/36538838/xorg.conf -- (32MB) certain windows drawn garbled when XAA is used https://bugs.launchpad.net/bugs/426582 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xserver-xorg-driver-ati. _______________________________________________ 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