Richard

Your information was spot on, Turn off and then turn back on holding down the Display button I got down to the option to change it to Ncon, turned off and on again, all good.

Having pressed the clear button again on the remote (the 504 showed Ncon) and then the remote display button still no joy with the version being displayed.

I'm guessing that the lead is a bit flaky as it just a little too short for the link and once plugged in the cable is under strain.

I have ordered a longer C5 cable which I hope will resolve the issue.

TBC

Cinema: DSP750 x3, DSP3300 x 4, DSW.2 x 3, Trinnov A32, 271, Oppo 203, Toshiba HD-DVD, SKY Puck, Sony XW7000 PJ, Screen Research AT, Kaleidescape 4K 30TB
Lounge: 861v8, 808v6, UHD722, DSP8000SEPP, DSP7200HCSE, DSP3300, DSW x 2, 504, C15, Sony UBP-X800, SKY Puck
Bedroom: DSP5200SEHC, G65, UHD722, G08, DSW, M6, C15, 210, SKY Puck
Spare: 818v3