While trying to reinstall driver, my computer won't recognize my GPU

For while I'd been having some troubles with the MMO aion crashing after a maintenance patch. I asked the tech people from there for some help, and what it boiled down to was that they wanted me to reinstall updated Nvidia Graphics drivers and use "Driver Fusion". After uninstalling everything I tried to setup the new drivers, but the setup program told me it couldn't detect the required hardware. After fiddling with it a little I tried to reinstall the old drivers temporarily, only to find they would install for the same reason. At this point I can't even look in my specs to find out what card I have (the displays option in my computer's properties is mysteriously missing.), and I haven't been able to get any useful "professional" assistance.