ok my girlfriends computer wont show video..it turns on fine, the power supply works fine..there is no error beeps so her ram is alright..i switched my monitor and my vid card with hers and still no video i fallowed the process of elimination can u please help

other than trying new drivers , sounds like maby the MB died

Is the Vid card well secured in the slot? It could also be a PSU problem, It isn't strong enough to power up such Vid card.

Did you enable the GFX card through BIOs?

turn off the onboard video?

There needs to be at least 1 beep indicating it's finished the POST. If you hear no beeps, it's not posting.

Strip everything on the computer out, leave only the Processor and video card. See if you can get the system to boot that way. If it does boot, then start adding components back into the system one by one until it won't post. When it won't post, you know what component is bad.