EskimoPie

It's likely to be a scratch on the disk or a dirty disk.....i had this problem once but i fixed it by restarting the memory i was in.....i got stuck between some area's like a post and a few logs and a wall

Thanks for the thought, but the disk is nice and clean with no scratches. I've done some more playing around and it appears the bug is just limited to the Frontier zone... if I fast travel to Boston or the Homestead, I can walk around fine, but if I enter the Frontier zone by any method (fast travel) or through any entrance, I suddenly can't walk any more. It's really weird, I can move around normally in the white screen while the animus is loading the zone, but as soon as the zone appears, I'm stuck. Fast travel back out of the zone and I'm good. I've been able to keep playing and haven't had any primary tasks that require me to be in the Frontier zone, but I'm sure it'll happen eventually and then I'll be hosed. Anybody have any other ideas??? BTW, the Frontier zone USED to work fine... I'm not sure what triggered this bug.