the quest marker for the initial dawnguard quest was in the wrong spot
during the quest a new order galmar was located on solstheim so i could no see a quest marker for him while on mainland skyrim (dont think this is a bug, but i did have to wiki it to find him lol)
during the same quest after i had recruited both people, it took galmar a considerable amount of time to catch up and make it to fort dawnguard, however when i entered the fort isran began his dialogue and was talking to galmar like he was there, after he finished the gates wouldnt open and i was stuck, i waited a few hours in game then exited and reentered the keep and galmar was there and the quest proceeded like normal
the game froze one time while trying to load a new area
my save is 13mb, 190hrs played, 160gb ps3 slim