NO Audio on WD TV Player

Hi. I have installed a new WD TV HD media player. I am experiencing problem of NO audio on a number of movies with varying audio format. I already got replacement from the company twice yet the problem persists.

You probably need to post in the correct forum.   This is the forum for the WDTV LIVE products; the forum for the WDTV HD players is here:

http://community.wdc.com/t5/WD-TV-HD/bd-p/tv_hd