This is stupidly obvious: if you want to do a dual monitor setup with the NVidia GeForce 8500GT, all you have to do is use a VGA input for one screen and a DVI input for the other. I tried using a DVI splitter to put both on DVI, but that’s not how it works! It’s analog + digital. Simple.
As an aside, why can’t the Nvidia linux driver do Twinview for my two graphics card (Nvidia 6500 and 8500GT)? Windows can!

