As part of the 'Forbidden Legend' quest you have to travel to a placed called Folgunthur. Inside there's a pillar puzzle where you have to have the correct symbols facing outwards. I've completed the puzzle (snake, fish, bird), but when I go to activate the sealed grate the switch simply fires arrows instead. I need to open the grate in order to proceed further through the dungeon (which apparently contains a dragon shout and is 1/3 of a big side quest). I tried reloading my game (even switching my PS3 on and off), fast travelling somewhere else and returning, inputting incorrect symbols and then correcting it, but nothing works; I simply can't proceed further into the dungeon because the path won't open. This is the first big bug I've come across, and it's very disappointing.
Does anybody have any idea of how I can resolve the problem, and, if not, is Bethesda aware of it, and are they going to be fixing it?
Thanks