I've connected a Panasonic DMP-BD55 Bluray player to the IE42 card on my 861v4. I can't get multichannel to kick in.

The disc is set to DTS-surround option.

The player audio options are:
Dynamic range Compression OFF/ON
PCM Down conversion OFF/ON
Downmix surround ENCODED/STEREO

I've tried various combination of settings but can't figure this out.

Any help would be appreciated

Alan

861v4, 800v3, [all 96/24] DSP7000, DSP5500HC, DSP5000, HD 621,Rel Stadium II