Hi there, Just got a brandnew samsung led tv and because of this I have to use hdmi to get my mac running onscreen. I've purchased a mini displayport to hdmi adapter and connected everything but I cannot for the life of me get any sound to come through the tv. The picture is there but sound still comes through my mbp's built-in speakers. I've checked around and as far as I can tell my mbp (purchased June 2010) should support sound via the displayport. I've tried looking around and reading various forum posts and all that but I just can't get it working. Please help.