Shoutbox

I bought NFS: Most Wanted for my PC, however when I set the in game display settings to any resolution higher than 800x600, the game is very choppy and doesnt run smoothly (my screen resolution is really 1440X900). I'm thinking it has something do do with my video card, which I believe is an ATI Radeon Xpress 200 Series, so I think (let me know if thats not a video card). Is there any settings i can change on my computer that will help me play games with a higher resolution with faster gameplay, or is my video card just garbage and doesnt support it.

Thanks.