I finally got my setup installed today. I installed the N3, 5700Tv, DEQ-P8000, and AXM-P8000. All seems to be working ok except for the TV tuner, I switch the AXM source to TV and I get sound from the tuner, but no video on the screen. And when I pull up the sources on the N3, the option for TV is grayed out??? Is there some setting on the N3 that needs to be turned on to recognize the unit attached? And, yes I connected the IP and AV cables. Thank you in advance...