Hi Rick

I honestly don't know why the picture has now stopped.
I've not changed the config file nor the HDMI wiring other than trying 3 different HDMI cables between the HD621 and the plasma (none resulted in a picture).
It's as if the current setup means when I have sound working via the SpeakerLink cables, it disables the HDMI output port.

With regards to the sound via HDMI, I was led to believe by a post from MagnusB that it was possible to get both sound and picture via the HDMI output of the HD621, although I appreciate that's not mentioned in the Meridian documentation and I understood that it wasn't possible.

Here's his post.
Originally Posted by MagnusB
Yes it's possible to send audio out to the G68. It will still include audio over HDMI to the TV.
You select the audio output from the HD621 to the G68.
Right click on the HD621 and select "properties", or select "connect" and walk through the setup.

Mconfig Diragram detailing a HD621
Getting just a picture will be fine for now!

Home Cinema: Panasonic DMPBDT700, G68, Jeff Rowland MC6, Adept Response AR8, 803 Diamond, HTM3s, ASW855x2, CCM816x2, Pioneer 506XDE, Nordost / Au24 cables
Stereo: 808i.2, Audio Research Ref 3, Canary Audio 303s monos (modified), Adept Response AR8, Living Voice OBX-RW, Valhalla cabling