Hi all, lately my tv's picture seems to move slightly when I watch HDTV and BD's,It kind of reminds me when you go to the movie theater and the pic moves side to side a little bit,it isn't that noticable unless you are looking for it,I was wondering if anybody knows what it is or is causing it?,The TV that is doing it is my LR Mitsubishi 120hz 1080P DLP(model number is in my sig). Thanks