Nah, drivers arent the issue here especially if it just happened out of the blue. I've seen this and had it happen a few times. The card is just dying/dead
It's not really 'overheating' because at this point the damage is done. Time for a new card
well that sounds like a driver or overheating problem to me. try that video card in another computer and install the latest drivers for it. it could be just your computer motherboard or something could be wrong with the operating system.