I have my 622 connected to my Sony HDTV with HDMI and component cables and the optical digital audio to my av receiver. When I watch the HDMI output I only get stereo output through the digital optical audio to my av receiver. If I switch the same program to view through the component cables DD5.1 passes through the digital optical audio to my receiver. I have digital optical audio out from my tv also but it only passes stereo to my av receiver when watching through HDMI video. I am guessing that DD5.1 can only be passed through one output at a time, either HDMI if active or the digital optical out. Does anyone know what is going on here? I would sure like to watch the HDMI output and listen to DD5.1 at the same time. Thanks.