My card is an ATI Radeon 4850. Now, the background: I recently purchased Starcraft 2, and the game has a well-known bug: the menu screens don't have an FPS cap, and thus your video card will render the bejeezus out of them to the point of getting fried if not stopped. Being the foolhardy Starcraft addict I am, I continued to play despite my computer's forced shutdowns. I had figured that the shutdowns would always happen before the card reached dangerous temperatures so no damage to the card would occur. Yes, that is terrible logic, but I really did want to play that game. I've seen a decrease in performance since I fixed the menu problem, as in there are notable FPS drops while playing every 10-20 seconds. I lowered my graphics settings, yet this has been happening consistently. I don't know if this is a cue that my card has been damaged, and this could very well be terrible B.net lag for all I know, but the circumstances I just described make me a bit worried. Are there any diagnostics I can run/other tests to see if my card has been physically damaged? Thank you in advance for your help.