I have a sling box 350, my streaming device is a Vizio Co-Star with Googel TV. A slingplayer app is incorporated into the Vizio Co-Star via Spot Light TV App (Google TV). I get great video, but no sound. I will momentary get sound when I hit the up or down button on the Co-Star remote. Vizio says this is a software problem that I will have to contact Slingbox, Slingbox claims that this is a Vizio problem since they licensed the app to Google for Google TV and not to Vizio. Is there any to solve the problem?. Caught in the middle!