So I recently purchased a HTIB Samsung HT-E6730 to go along with my Samsung P50B450, and the sound and setup went fine, but unfortunately whenever I tried to add an output, the system simply would refuse to display anything. I have had it hooked up (HDMI->HDMI) from the beginning, tried to plug in my Comcast cable box into one of the two HDMI outputs to no avail. At one point, I tried to hook up the cable box AV->AV, and was able to get sound but no picture. I had Anynet enabled, but i'm not sure whether that played any role in the failure of sound. Any potential troubleshooting techniques? Thanks so much!