Hi Chas,
That's spooky, I've just bought VirualCZ, not had much chance to use it yet though. ALTHOUGH that does allow me to choose which memory slot to send the sound too and it all seems to work as it should.
I think you may be right - MidiOx isnt asking me where I would like to send the sound to so maybe that's why it doesn't work. I think there's a possible work around of opening the SySex sound in Virtual CZ then sending it to the synth through that... not had time to try it yet. Maybe there is a way in MidiOx to specify which memory slot you want the message to send to but I'm not clever enough to work that out!
Cheers
Scott