Well i rly never heard of it happening, but a week a ago i forcely disconnected my pc while loading a game map, and everything in my PC got corrupted, i had to use a backup drive and notice that my screen would loose signal when the res. is changed, thinking it was the old driver i un-installed them and got the latest and still the same thing. i got worried so i just decided to reinstall windows and still the same thing. So i know its not the software but rather card. i checked for any physical damage and nothing so im bogled here. i got to the point on suspecting that the BIOS is corrupted.