Yea, it's just terrible. It crashes for no reason at all, with the 'atikmdag.sys has recovered successfully' multiple times, crashing between, and then it just turns to either a black screen, or a black screen with vertical grey lines. Won't respond to anything, have to powercycle it. Happens randomly. Happened three times today; once while playing a game, successfully recovered. Second time, it just hung and had to be powercycled, while web surfing. Third time, it was untouched. I wasn't even near it, and it just crashed. Have tried: Reinstalling Windows (vista x64) Catalyst 8.6 + hotfix drivers Catalyst 8.6 drivers Hotfix drivers Catalyst 8.7 beta Removing half the ram Disabling UAC Disabling Catalyst AI Unplugging my second monitor Stock speeds on CPU and ram Swapping power supplies Disabling Aero on Vista Every single time it's atikmdag.sys. Never anything else. This is getting pretty unbearable. At this point I wish I just went with a 9800gtx instead. Specs: Intel E4300 4x1gb pc6400 4 hard drives of various sizes Silverstone ST50EF+ 2x monitors (Acer 22", Viewsonic 17") And of course, the Visiontek HD4850.