I am quite curious about something here.
Have you tried launching Battery in Stand-Alone mode, and trying to trigger sounds that way?
I am just trying to see if we could whittle down the things to look at, by taking Sonar out of the equation, for testing purposes.
In addition, (and I apologize if you answered this already), what happens if you use a different drum synth with your electronic drum kit? Do all the pads trigger like they are supposed to?
Bob Bone