Disklavier

This is my first message ever in this or any other group, so forgive 
me if I mess up any protocol. I recently bought a used MK II 
disklavier, and I am having alot of fun with it. I teach piano, so I 
composed a lesson on Finale, saved it as a MIDI file, put the MIDI 
file on a floppy, and put it in my MK II. It played fine, but the 
sustain pedal goes up and down in weird places. The Finale file was 
composed with no pedal, and "Human Playback" was applied, which has no 
pedal. I inspected the Finale file's MIDI parameter, and there is no 
pedal, and there is no sustain when I play the MIDI file on my 
computer. Any ideas? 
Thanks,
Phil Mallory