I cured my vampirism and started hearthfire and after playing for a while I realized that my dawnguard quest had completely reset. My game thinks I havent started the quest yet. I went back and check all my saves just to make sure and sure enough 5 saves back (in perfect continuity, I don't jump around loading saves) I am back in the castle. Has this happened to anyone else? Makes me not even feel like playing the game anymore because of all the time put into it. Maybe I'll just play it on pc next time.