Has anyone ever had COD4 or any game simply freeze up and disappear without errors or any msg of any sort? I've never had that happen no matter how unstable of an OC or how hot it gets. It just happened to me for the 2nd time. I just went back to the 185 beta drivers thinking that somehow oddly enough the final release 185s might have been causing this. It's just weird how randomly it happens, sometimes it'll take 2 hours of playing sometimes just 40 minutes.