So, suddenly my PC screen flashed at me and went grey. I had to reboot with power reset button. Get back in to windows, and it says 'Code 43' next to my nvidia card in device manager. Try to install its drivers and it doesn't detect the card. I reboot, it installs drivers but still doesn't enable the card in windows. Along with the blue lines as shown in the picture. I am guessing this is my card gone kaput. So, I need a replacement for an EVGA GTX 780 ACX SC... is it the 1060 or 1070 that are equivalent cards at the moment? And where is the best place to look for them at hopefully slightly lower prices? As, obviously I can't afford either what with the ridiculous prices GPUs are now! I'll be eyeing the market place for suitable cards. Not a good time to lose my card!