Trying to get at the problem:
If I speculate that the bug is revealed with certain sound cards, then Terry (and garybebee) could test that by removing their sound card.
Alternatively, I could get a sound card like Terry's and test it that way. (I'm a bit reluctant to spend that kind of bucks on something I don't need, but...)
If MA3 bubbles and CanonGuitar play
without the high-end sound card, and do not play
with the high-end sound card installed, what would be the corrective measure in MA3?
Or, what would fix the problem regardless of the cause? Would it be worth just doing it (if it's relatively simple)?