Hello. I recently bought Club 3D ATI Radeon HD 6870 to replace my old GTX 460 and yesterday I first encountered the infamous Grey screen of death. And today the black one. It seems to only occur when watching videos from Youtube or IMDB. I have the latest drivers and haven't overclocked or anything. When this happens I can still hear the video playing and pause / resume it. Also, I thought this was only HD 5xxx problem :/ I'm so confused right now.