Forum:Freezing

Having problems with the game. I even installed the update, but no change. As soon as I leave the doctor's home, the game freezes never to come back to normal again. So far, I trying running it in XP compatilibity mode, used low level configs but nothing is any better. What would you suggest? Everything seems to be OK until i step outside to Goodsprings, and I can't think of any other solution.. help please.