I can't think of what would cause that. To simplify the problem a little, could you try the same thing with a track other than the Thru track? e.g. in each instance of BB, select the same STY, then select a Hi-Q instrument for the Piano track (select an organ in one instance of BB, and a bass in the other so the difference is clear).

Perhaps you could give us more details about your MIDI and audio driver settings as well.


Andrew
PG Music Inc.