I have a triple-monitor setup it my computer. Until recently i was using two radeon X1600XT video cards. I decided to get myself a Geforce 9600GT, and when I put it in my computer I figured it would be better if i paired it with another Nvidia card, so I also put in a Geforce 8400GS I had lying around. It seems the 9xxx drivers do not work with the 8xxx series cards, and any attempts I have made to install drivers for both cards caused blue screens. I would like to know if it's possible to use my 8400gs or if I will have to replace it. I do not want to purchase another 9600, because it is overkill for my needs. When I play games I only use the primary monitor. Would I have better luck with one of my X1600s? I've never mixed video cards by two different companies. Any help or suggestions would be appreciated. Right now i'm living with only two of my monitors and i really find myself missing the third.