What is this driver for? I have a windows update for nforce Nvidia driver that wont update. My computer still seems to work just fine without it. Do I need to update it? I don't even know what it does. Any advise would be great, or if you need more info I can write back when I get home. I left all the specs on my home computer. But I thought this question would be vauge enough you may be able to help without it. Thanks.