What's probably happened - although I can't tell, because you haven't included the logs with “ubuntu-bug” - is that the upgrade has somehow managed to install one of the proprietary drivers. Their libGLs are different, and one of the ways that they're different is that they store textures the other way up :).
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/781353 Title: libgl1-mesa-dri: display inverted (upside-down) in startkde after natty upgrade _______________________________________________ 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