I am trying to instantly stream TV shows from Netflix. When I play the videos however, I do not get any audio. The Netflix menus do have sound just not the videos. My setup is an HDMI cable running to the TV and the 360 Optical adapter running from the 360 to Logitech Z-5500. At the menu and games the receiver says, "Dolby Digital" then during the videos, "No Digital Data." Please help me out.