I was playing cod until my computer froze, some colored artifacts appeared. Restarted my computer and noticed that windows does not display aero effects any more. Device manager says : ''Windows has stopped this device because it has reported problems. (Code 43)''
What happened? Is the graphics card dead?
GPU - 8800 GT
More aboutgraphics card dead
Do you have another gpu to test? Otherwise it's quite possible your card is dead.
I'd first Google the Error Code. You can check to see if the fan is running on the GPU. Also may want to try re-seating the card and changing the power connection with another.