Dragon Age 2 PS3: Wayward son Problem?

So, I'm on the Wayward son mission and I'm supposed to talk to Samson. When I go to talk to him all he does is repeat the same phrase and I'm unable to fully interact with him conversation wise. Is this a glitch? I've skipped over this mission, but now it's the only one left at this point in the... show more So, I'm on the Wayward son mission and I'm supposed to talk to Samson. When I go to talk to him all he does is repeat the same phrase and I'm unable to fully interact with him conversation wise. Is this a glitch? I've skipped over this mission, but now it's the only one left at this point in the game so what do I do?? If I restore to an earlier time I will lose a TON of missions that I"ve already completed. ANY SUGGESTIONS?? OR ANYONE ELSE HAVING THIS PROBLEM?