Recently my gtx660ti out of the blues got stuck at 800x600 and it doesnt let me install any drivers everytime i install it, it gives an unknown error. i tried updating drivers from device manager and there GPU was detected as an unknown device, not even in the 'display' category. after restart i went to device manager again and it showed gtx 660ti in 'display' category but with a yellow mark. in the properties it said 'this device has malfunctioned and is not receiving control signals'... same error in 3 PCs. i know most of u will say its dead but i cannot afford a new card, is there anyway to make it work?