I've run into this error with the all the 4.X Catalyst drivers for my 9800 Pro and can't find much on this particular error when I google it. Following a guide from rage3d, I've gone through my system and removed everything to do with ATI drivers using DriverCleaner2, RegCleaner and the Catalyst removal utility and still get this stupid error. The only sticking point was the SmartGart removal utility wouldn't run because it wants to install to C drive which mine is J and it won't let you change the install to a different drive letter. All my games end up with a BSOD and it happens sooner and sooner into the game as I've tried each new Catalyst release. Could it be that my card is made by Sapphire and not ATI? Is it just an accumulation of crap driver files from incomplete uninstalls causing this error? I appreciate any help fellas I'm starting to get twitchy from lack of gaming.