Hi i bought ketron sd1 plus a month ago with version 4.0b.Unfornutely when i work with midi files and return to block registrations sometimes the styles are not playing the kick drum.Notice that i have in the configuration output utility drum parts assigned only to output 3 and the rest to 1+2.I upgraded to 4.0c but the problem remains.What to do?Is anybody with the same problem?Thanks