I used this on an a4000 long ago and had no such problem thru os 3.0.. Maybe there is some issue with the actual midi interface there. DMCS 2 works great on win UAE, and it's fun to play back the midi thru the pc's own Sound card General Midi implementation, and timing is adjustable there..
Why don't you do an internet google search for a guy named "Talin" or David Joiner and email him (don't ask him for tech support) about the software I am sure he knows quite a bit about it, and Music-X, and the Fairy Tale Adventure. He might even have a web page up about that stuff :-)
