I'm playing on a mac and when i try and join a server none come up, and when i try and join a favourited server it gives me a 'incorrect authorization key' error. This is happening to a lot of other non-windows users, and its been happening for at least 4 days now, but despite complaints on the steam forums nothing has been done yet (this is assuming its actually a TW problem). I think it may have something to do with the pre-dlc update. Restarting my computer hasnt had any effect, and neither has updating the Operating System or re-installing the game. Haven't had this issue before, even when most players had the CD key error a few weeks ago.