http://www.msi.com.tw/program/suppor...?UID=10&kind=1

Get the latest NFORCE Drivers for your mobo/chipset there. If you are using the onboard VGA, use the VGA drivers as well as the OS drivers. That should clear up any problems you are having. If not, post back and we'll see. If you are not using the onboard VGA, and have a secondardary AGP card installed, disable the onboard VGA in the BIOS, and that may help...


Also, run a virus scan just in case. make sure you are using an antivirus software/firewall..

And just to check, did you install SP2 (service pack 2 for windows XP)?