hi guys, yes i have tried the component cables, yesterday and had the the same thing, taking them back to walmart, i am hooked to the tv with the hdmi, and i have a DVD/vhs player hooked up to the the hdmi 2, i even disconected that and still the sound, Tighted all the connections, pluged into a outlet by its self, Man i have tryied everything, Even had the Hdtv replaced, The only thing i haven't tried and i was thinking about that this morning is the connections under the mobile home, there is a box there where the sat plugs into it and then another spinter, which runs the cable up to the receiver, maybe they are not tight, you know its not all the time but this morning i didn't have the sound on the tv and you could hear a click and click for the receiver box, like every few seconds or so. You guy have really been good on here. I checked the Direct Tv sight out also there is problems over there also(crackingand popping) I am going to call the techs again today, maybe have someone come out and check the outside connection and make sure those spinters are working like they suppose to. If that works will let you know.