Strange. Haven't encountered that bug myself, and this is the first time I've heard of it.
Do you have any mods installed? If you do, then you might want to try and disable them and see what happens. Off the top of my head, the "improved atmosphere" mod, for example, affects how npcs move around, so this would be a conceivable kind of bug that that mod might introduce. That's just a wild guess though.
[EDIT:] Did a little searching on the issue, and the best I could find was a post by someone that stated:
"K I believe I've found how to fix it. You need to reload to a save
prior to being imprisioned, and you MUST switch to 1st person view. For
me "Page Down" will put you into 1st person view. When I did this,
Gorim walks right up to me like it should be. Hope it helps."
Have you tried this?
Edited by Swordfishtrombone, 26 February 2013 - 01:23 AM.