Nicolo, can you please try Hardy Alpha 3? And upgrade to the newest -ati driver from https://wiki.ubuntu.com/XorgOnTheEdge (it has both Gutsy and Hardy packages).
Nicolo, can you please try Hardy Alpha 3? And upgrade to the newest -ati driver from https:/ /wiki.ubuntu. com/XorgOnTheEd ge (it has both Gutsy and Hardy packages).