My ATI crashes every ~30 mins or so when playing 3D games (Warcraft 3). When the 'VPU recover' option is enabled it just means a 3-second freeze -> black -> all OK again, without enabling that it will reboot the computer instead.
(Using an older set of drivers, the latest have attrocious gamma correction controls that won't allow multiple profiles)
(Using an older set of drivers, the latest have attrocious gamma correction controls that won't allow multiple profiles)