I've just had the LAN/HDMI upgrade carried out on my European version 5805 (largely a disappointment, but see separate thread).
I previously used D-link/component video to link the amp to my 3910 DVD player, but decided to try to use the HDMI connection with D-Link.
Unfortunately, this does not seem to work. I can have audio, or video, but not both. If I use Firewire and HDMI, that works ok (with HDMI and Firewire showing up on the displays).
Am I trying to do something that is not possible?