OK. I finally got my S550 but am having a little trouble with the audio. I have an older model Kenwood VR-4080 which does not have HDMI inputs, but does have my 5.1 analog inputs. So, I've got my HDMI going to my Sanyo PLV-Z700 for video. Fine. I ran my cables from the S550 multi channel audio out to the analog audio in on the receiver. However, when I try to set the audio levels on the S550, I only get sound from the front left and right speakers. Since that did not seem to work I hooked up my coax from the S550 to the receiver. All the speakers work but the receiver shows Pro Logic instead of Dolby Digital. I'm not sure what to do at this point. Could someone who has a similar situation help me get this figured out? Thanks!