Hello  I play on xbox 360 and I am having some troubles with speech in skyrim. Ever since I completed the dark brother hood quest to get the necklace appraised I have had trouble talking to npcs.  when I talk to a random person or really anyone in the game most of the time I do not get any speech from then it will just be for example.  I have retrieved those thirty-nine bear asses you have requested for you potions  Npc: *silence*  Thank you for your compliment on my speed I assume that comes with a tip?  Npc: *silence*  You too, have a great day.  Or in the case of trying to continue the dark brotherhood questline when I talk to gabriela all her dialogue is greyed and I can't select any.  I have tried loading past saves, cleaning my disk, and waiting days for it to mabey fix its self. I am currently to far to start a new game and I wold love to continue my Skyrim experiance. I'm looking for possible fixes please respond   (also if you are wondering how long this has happened my name says it all).