Have you installed the 1.0b official patch?
http://support.lucasarts.com/patches/kotor2.htm
Check the System Requirements here http://yodashelpdesk.lucasarts.com/...3680&pos=Windows%20XP&top=System+Requirements
If the game is crashing after playing for a while, it could be your Power Supply Unit is letting you down. You can check your PSU readings with Everest Home Edition, free from www.lavalys.com/products/download.php?pid=1&lang=en
Post back with your system specs and the PSU readings from Everest.
http://support.lucasarts.com/patches/kotor2.htm
Check the System Requirements here http://yodashelpdesk.lucasarts.com/...3680&pos=Windows%20XP&top=System+Requirements
If the game is crashing after playing for a while, it could be your Power Supply Unit is letting you down. You can check your PSU readings with Everest Home Edition, free from www.lavalys.com/products/download.php?pid=1&lang=en
Post back with your system specs and the PSU readings from Everest.