I just bought a sony kdl-40xbr6 tv. it's a bravia model, and plugged into a cable box with a component hookup (I don't have a newer cable box with hdmi, yet). I've noticed that in some movies, it seems like the tv is in fast-forward. literally, like the scenes speed up. I can't seem to find much info on this. anyone have any idea what this could be. This is my first lcd tv, please be gentle.