I have an SLI setup that has gone to crap the past few weeks. I used to be able to get 70 fps avg in cod4. If I take out one card and leave the top card in, my computer boots like 640x800 and some crappy low bit color. Then I'll try and start EVGA Precision and it'll say something like Device not supported. But when I put in both cards and SLI them it acts fine except for a big performance loss. I'm thinking that it is just linking to the bottom card through SLI and allowing it to act like the top card. Can anyone tell from these symptoms that's what it is? I have the 191.07 Drivers
