When i am to follow pinarus inventius to go hunting he just walks into a pile of rocks and attempts to go through them with little luck. The place is inside anvil near a city wall just on the other side of the street from his house.
There's a bosmer npc doing the same thing next to him so i supsect this would be a path problem. I use better cities so it probably changed something in the city layout that causes this to happen.
Here's a screen
http://img337.imageshack.us/img337/1802/39187416.png
What do you think?