can not update video card drivers

Hello i am trying to play many different games but none of them are working they all say that my video card driver is bad and i have tried to update it but none of the drivers work.

I have a dell optiplex GX620 with windows xp pro and i know its not a gaming PC but it meets the requirements of the games I try to play, so I'm lost at what to do.

I would be vary grateful for any, and all advice you could give me

EDIT: email address removed

axen08

PCI-Express or onboard?

I'll assume it's a Radeon. You've tried downloading the latest Catalyst driver for your OS from ati.amd.com? I'd also make sure to download the latest DirectX even if you think you're up to date.

If it's onboard then it's GMA 950...in which case it's a coin toss whether a game works or not.