Hi
Just got a JP8080 and trying to get Cubase SX2 to trigger it by MIDI without the other instruments playing.
All of the other instruments I use are VST - this is the only hardware I have. I don't have a MIDI interface, but instead I'm using the M-Audio Keystation Pro88 as a controller and a MIDI thru device (controller connected to computer by USB, JP8080 connected to controller by MIDI cable).

The problem is that the JP8080 sounds fine when I have it selected in the Cubase track window, but when I select a different instrument, the JP still plays on top of the other instrument.
Is there a way to isolate the JP8080 so that it doesn't play when I am editing the VST instruments? I've tried setting the MIDI channel on the JP8080 to an unused channel, but then I get no sound at all. I've also tried setting the controller to "MIDI out from USB" and then the JP flashes "MIDI disconnected".

Do I need to get a MIDI hub to make all of this work?