I have a about 30 hours into new vegas and after making some tweaks when I first got the game, I have been running it without any significant problems. Recently however i'v noticed that whenever i enter a combat situation with more that 2 or 3 enimeies, the game slows to a crawl and then will go back to normal after the combat. Anybody have any suggestions as to why this problem has cropped when it has been fine for 30+ hours. Thanks to anyone who can help.
Win 7 64
i7 870
Nvidia gts 450
4 gig ram