I heard on another forum that it was because I already went to Driftshade and cleared it out before getting to this point in the questline, which I did, but for another quest the game gave me hours before! By completing an earlier small quest, I screwed myself out of this questline (which I would have preferred to do)?
Is there any way around this? Perhaps a way to initiate it on my own? Are there any plans for an update to fix these quest glitches? I really don't want to have to start over and scrap my level 44 character that I have already put over 100 hours into, but this is a major questline that I want to complete, mainly because I want to be rid of being a werewolf. Now, I wish I had never started the questline.
By the way, this is for 360. Thought I was in the 360 section of the forum, so I didn't think I needed to put that in here.

