Weird problem with graphics card!

[Lej]

I've been working on this computer for about 5 hours now trying to get the graphics card to work. It's my friends computer, and he said he bought the motherboard, and it came with a "nvidia geforce 7025 / nvidia nforce 630a" card. It USE to work in the past, but ever since he upgraded to Windows 7 Ultimate, (It says the software isn't genuine), the card won't work!.. I've tried EVERYTHING.. From auto detecting the needed drivers, uninstalling them and reinstalling them.. But NOTHING works. The onboard works, but when I change the cord over to the card port, .. My dell monitor goes from the "self test" screen to a blank black screen, with the power button being orange, not green.)..

Device Manager sees the card, and says it's working properly.. but it's not!

I don't know what to do anymore!.. Any suggestions?

 

[OhSnapWord]

Go into the bios and disable the onboard graphics. Make sure that the primary graphics device is set as the PCIe card.

 

[Lej]

There is no option for onboard/graphic cards. And I can't find the BIO's version # anywhere

EDIT: Here's the mobo: http://ee.gigabyte.com/products/page/mb/ga-m68mt-s2rev_31/