Hello, recently I started my second playthrough for Fallout: New Vegas, and when I get to the town Primm, all of the NPC's and enemies are invisible. Not only that using vats on them locks up my Xbox 360. This has really taken from the experience of the game, It really is a great game ; these bugs are just unacceptable.
EDIT : Installing & restarting the game didn't help at all. I've tried just about everything.