Basically, I tried plugging in a TV as a second monitor, but whenever I switch my TV over to HDMI input, my PC will BSOD. I have tried about 6 different sets of drivers, all of which either didnt work properly (fuzzy screen etc), or would BSOD still. I checked most of the dumps, they have the same error You think its a faulty card? Also, when I used the monitors switchewd over (TV as main, pc monitor as secondary), the PC would bluescreen when the monitor was turned on, which suggests a hardware error to me.. I attatched a mini dump anyway.. I did a clean install of the drivers using driver cleaner; didnt help. Im now running memtest through, is it OK that I have left all 4 sticks of ram in to do it; would it be better to do them 1 at a time? If this comes up negative, im going to run spybot through, and try cleaning my PC (some of the fans are a little dusty, though I doubt this is the problem).