While playing a AVI file on my 13" new MBP with VLC Media player I am not able to hear the majority of the speaking going on during the movie, the speech is very very low or non existent!! while all the other background sound is great!! I have MBP hooked up to my home stereo system with my Moshi MiniDisplay to HDMI with Audio support All other sound works, I am listening to iTunes through it as we speak For whatever reason the voices during movies are pretty much non existent!!! Please help!!!!!!!!!!