This is a common error for years now. It occurs with Nvidia and ATI cards. There's no real clear fix for it even after all these years, there's still numerous forums devoted to this one issue.
I'd suggest trying to re-install windows if you can't find a solution. Some claim everything from Windows updates to faulty hardware caused it. I've had it a few times myself, with 2 different ATI cards and each time was able to fix it, without really knowing what I did, or what caused it to happen in the first place.