When I return the Hammer of Gharen to the ruler of Ebonheart, rather than give the location of the entrance of Dagoth'Ur, he asks me to do a generic quest for him (kill this guy, escort this person, etc). I have tried reloading and reentering the city, he only just gives me a different quest each time. If I decline the quest he refuses to speak with me, saying he had trouble with a dark elf with my name earlier. Anybody know anything that I don't?

Edit: Never mind, apparently closing and restarting the game altogether was needed to resolve the bug. Whew, dodged a bullet there.