I'll check, but it must be because I get DD 5.1 when I run the HDMI directly into the receiver's HDMI #1 input.Are you certian that you have the DVR outputting Surround Or Bitstream If its in stereo that could be why its only giving you Dolby Pro Logic.
Edit: Yes, it is set to output DD/PCM.
Like I say, when I run the DVR's HDMI cable (same one as above) to the TV, and use the TV's optical out into the 772, all I can get is DD pro logic (and a bunch of Neo, stereo, Effects, etc.) Just so strange. I suppose I can buy a splitter and run one branch to the TV and one into the 772. The real cause of all this is that the 772 doesn't allow HDMI pass thru, so I can't operate TV w/o receiver on. Also, if I hook it up w/HDMI directly into the 772, I get the DD 5.1 I want, but no sound output to the TV; must have the 772 on all the time. If I turn the HDMI to send sound out, then the TV has sound, but this cuts off all the speakers connected to the 772. Nice, huh? This is all to accomodate the Wifey.