Windows 7: Problem with nvidia mobilitymodder

I'm rocking a Sony vgn-nr32s/s laptop with an nvidia 8400m gt grapics card (hardware ID = PCI\VEN_10DE&DEV_0426&SUBSYS_902D104D&REV_A1). It sucks, but I can play Source games on it and can't afford a new one at the moment. I bought Portal 2 on it like a week ago, and all was good for a day

Went out for the day, came home, and one of my housemates got a virus on here. **** got real.

I finally got rid of it, but I couldnt load up portal for some reason. Everytime I'd boot it up it would automatically close, with no warnings or errors. I tried reinstalling the game, reinstalling steam, verifying game files, defragging my hdd, spyware scans, virus scans, etc, no avail.

Eventually I reformatted, and moved from vista to windows 7 64 bit. all went fine, but when i booted up it says my graphics card is "standard vga graphics adapter" in dxdiag. I run the windows experience index and everything performs fine except my graphics card, which is 1.0/10.

Reformatted again and tried Windows 7 32 bit, still the same issue.



After a bit of googling, it seems to be quite a common problem where sony have modified their drivers so windows doesnt know what the **** kind of graphics card i have, so i used the nvidia mobilitymodder to fix it.

However, i run it with the forceware drivers on driverheaven, and it basically says this at the end:

http://i.imgur.com/kCaHc.png

And then i run it with the nvidia mobility drivers and get this:

http://i.imgur.com/5iKBN.png

So nothing is changing, and it still thinks my graphics card is "standard vga graphics adapter".

Any help is very appreciated, as I'm pretty **** with computers and I'm currently relying purely on Google and common sense, and it doesn't seem to be getting me very far.