You have to use a program like Cakewalk or Power tracks to EVENT EDIT your SMF songs on your p/c program. There are control VOL changes inserted thruout the songs your talking about. When the song plays it stays at one vol but when it reads another control message it changes vol. Remove all the vol change events or change them to the same vol you want, then save the song and it wont happen anymore. The SD-1 is an excellent KB and has nothing to do with your problem.
[This message has been edited by Dnj (edited 11-13-2002).]