I just purchased an LG 60" plasma and the new Bell 6400 HD satellite receiver. I get picture, but no audio when hooked up with HDMI cable. I tried using AV outputs from receiver to TV and I get picture and sound. I tried my old receiver using co-ax cable and get picture and sound. Any reason why the HDMI cable would produce a picture and no sound? There are no other instruments hooked up to the receiver or TV. ie, no AV receiver/switcher, no DVD, no computer, no Blu-Ray. I am running RG6 Quad cable, I have two cables coming off LNB 91 and two coming off LNB 82 running down to the SW44 switch. I have port 1 from SW44 switch running to power inserter and then to Bell 6400. I have port 2 running to the old Bell receiver which is working just fine on my old Panasonic TV. Please help.