Avatar can not walk in front of puzzle slabs in Ansilvund Excavation Q

[chickman801]

I was playing through Ansilvund Excavation Quest to the puzzle slabs, when my avatar would not walk to the slabs to activate them. I could walk up the incline to the ledge where the slabs were, but no farther. My avatar could move, but not to the designated spots to do the activation -- as though there was an unseen wall stopping it. I tried everything I could think of to get to the slabs. I was able to - at one point - get to the first one by jumping continuously until I was close enough to activate it, but that was the only one. I saved the game. I made sure I did not have too much of a burden. I saved the game with a new name. I re-booted my computer. The only thing that happened that was out-of-the-ordinary was just before starting this portion of the quest, I decide to take a break and as I was exiting I was asked to do a steam survey. I did not see any harm so I did the survey and it took some info from my system upon exiting. When I logged in again, this is where I encountered the problem. Nothing else out-of- the-ordinary happened. So, I can not see what could be causing this problem. My avatar moves around the entire area that it had already covered. I re-traced all my steps from the time I entered the dungeon to the spot where I can not walk. My avatar can move just not in front of the slabs to activate them. Please help.