I tossed my HP and scavenged the Geforce 8500GT (512 MB RAM with HDMI out) and a Creative Labs 7.1 channel sound card with optical ins and outs. I put these components in a cheap E-Machine which had an onboard Geforce 6100 nForce 405 128 MB adapter.. Upon restart, Windows didn't identify the new Geforce 8500GT card. I'm dual-booting Windows 7 Pro and Vista Home Premium. What I did was go to Nvidia's site and download the correct drivers, however I did this sin Vista rather than Windows 7. When I restarted in Windows 7, I had the drivers ready fir install. When I tried installing it failed and then even worse, didn't identify the Geforce 6100 nForce 405 . I was stuck with the Standard VGA driver and i tried everything to make It identify at least one of the Geforce adapters. Right now, i took out the 8500GT and am using the Geforce 6100 nForce 405 (pre-release WDDM 1.0. It's working on both Vista and Windows 7 I need the 8500GT to work so I can connect It up to my home theater system as I had with the HP computer My question is...........Should I install the drivers for the new Nvidia card in Windows 7 rather than Vista?