Nvidia 7900GS Trouble HELP A GAMER!!!

I just bought a new Dell Desktop with a nice Pentium D 2.8, 1gb or Ram in DDR2 and a 256mbs 7900GS, I'm useing a VGA Compaq monitor from my old PC with a DVI to VGA converter. So I start playing some games on it

I was shocked when I see that Elders Scroll IV and FEAR:Combat (both games with the Havock engine) start to chrashing or haveing lots of problems with the textures and meshes but games like Doom3 or the Pray demo run at full graphic performance. I partially solved the problem at first reduceing textures to a medium detail and quiting anti-alaising and some advances features.

After that I check my drivers and it apears that I still have the old 84.31 Drivers from Nvidia and if I try to instal the new 91 version it just says "No compatible drivers for your hardware configuration found" I contact Dell and they say that maybe if uninstalling the Dell driver and putting the new one... BUT EVEN UNISTALLIG IT DOESN'T HELP!!!

Please I beg to some one to response to this, I love games and it's just frustrateing that in the middle of a nice on-line play I have to re-start the PC.

Please Help meee!!!!

From the woot forum for the 7900GS woot-launch (which should be the same Dell OEM 7900GS):

http://www.woot.com/Forums/ViewPos [...] post679656

I'm still waiting on my 7900GS to arive, so I haven't confirmed that these drivers work. So, your mileage may vary.

I also see the Dell Drivers here.