No Surround Sound with WD TV Live Plus

I DO get Netfix 5.1 optical from my Roku box, but not from my new WD TV live that I picked up yesterday. I’ll keep poking around for a solution for the WD. From FAQ, Roku: What type of audio outputs does the Netflix Player by Roku have? The Netflix Player by Roku outputs standard stereo audio on the red and white composite audio cables or 5.1 channel surround sound using the HDMI or optical audio cables. Keep in the mind that the movie or show must also contain 5.1 channel audio for surround sound to work. – Another interesting tidbit from this faq. - You can use 4 players per Netflix account – http://www.roku.com/netflixplayer/support/