Thanks for the help, FBB. When you say to disable the Microsoft GS Wavetable, do you just mean de-selecting it in Sonar (which I have done) or do you mean going into Windows Device Manager and doing something there.? I can't find any reference to it in Device Manager.
The Presonus Firepod does show up in Device Manager as working properly, and I have installed the current device drivers from Presonus. Are things supposed to be labelled as MIDI devices in Device Manager - because I don't see any reference to MIDI there - or would the Presonus just show up as an audio device there?
This seems like it should be an extremely basic problem to solve, but I have spent hours on it and gotten nowhere. Would really appreciate any other ideas.
HN