Tried with cdimage: http://cdimages.ubuntu.com/daily-live/20130311/raring-desktop-amd64.iso Still very ugly glitches! Please, if I can provide any more details or something, tell me! I added a glxinfo output again of the version of the used libgl stuff. Anyway, as it was the livecd boot, I can reproduce it very easily. Greetings Thilo