I'm running on an Emachines with an pci-e hd3850 I had it working before but had a hard drive fail and had to reinstall windows xp pro. For some reason now the computer is not detecting my card, but at the same time I have my monitor plugged into the card and everything is working fine other then the fact I cannot play 3D games. When I go into properties>settings for display it says Default Monitor where it used to have my video card. I was thinking I may have had to switch it back to Pci-E in my BIOS but it was still on PCI-E and I've tried a couple different drivers (new ati drivers, old versions of my cards driver and omega drivers) I can't figure out why my computer is not detecting the video card. Any ideas?