This is caused by a conflict between the global MIDI channel and the
Part 1 MIDI channel. See the help pdf "a guide to using the Supernova
II Multitimbrally with a sequencer" above.
http://www.novationmusic.com/support.asp?supportid=16&view=TandT
http://www.novationmusic.com/support.asp?supportid=16&view=TandT