I'm stuck on the puzzle in Halaster's dungeon with the gargoyles and the skeleton bombs. I know the statues need to be turned towards the door, but I pulled the levers next to the statues before they were all pointed at the door. I can't seem to move the statues or pull the levers anymore, so I can't do anything with the puzzle now. Does anybody know if this can be fixed?

It's possible to screw the puzzle if you pull the lever while the statue is surrounded by a bubble.
The only fix is to load a previous save game and do things the right way.
I know because I got screwed several times there. :/