my problem was a little different to that cause i was crashing in the singleplayer as well , But like i said since i upgraded to vista i havent had any problems ... , Maybe try using the latest nvidia Beta drivers http://www.nzone.com/object/nzone_download...betadriver.html Download the one for windows xp they just made a new released driver yesterday .. make sure you use driver cleaner pro aftar you uninstall your old driver