rharv:
I've found a answer of sorts; I set the Default DXi/VSTi Synth to ORCHESTRAL and checked the Re-Route MIDI Playback to default DXi/VSTi Synth radio button. This configuration allows MIDI commands to be sent to the EDIROL synth. What I lose is the ability to manually play/record tracks directed to other synths because all channels go through EDIROL under this setup. In order to play or record a track directed to another synth (such as ARIA) I have to uncheck the radio button, record the track, re-check the button and save. Activating playback (with the button checked) plays all the correct tracks with the correct patches and responds to all MIDI commands. I'm still working on it!!!

I'll keep you posted with any other discoveries if you're interested.

Mespo55