walking through walls and everything else.

[pocketbrando]

Been playing the game for a few weeks and all of a sudden I am walking through walls doors, I can go straight up and through the ceiling and down through the floor. I can walk through desk, doors, etc. Game had been working fine until now. I have all the specs and then sum, Quad Core, Nvidia GT 8800, 1 G ram Video card. Playing all the recent games with no hitches.

I uninstalled the game and reinstalled it. My saved game sill does this.

Any thoughts on whats going on?