When I was adventuring in Black Falls Barrow, I came across a little problem when trying to use The Golden Claw to enter the Inner Sanctum. None of the 3 rings were able to be interacted with and the door would not open.
To solve this, I left zone (not the whole dungeon, just the previous loading screen) and came back. After that, it worked fine. This was on the 360 version, not sure if it applies to the PC or PS3.