I am having a problem with my pianomissimo lately. Now when I run my MC7 PRo the sustain pedal makes a piano sound as does the other two. I never had this happen before. I play the keys, and they all respond, but when I hit the sustain pedal it also makes a note as if it were one of the upper keys from the piano. Any clue on how I can fix this. I am using a Midi in/Out to USB connected to a PC which is using a M-audio sound card via a serial cable to a kick box with 1/4" jacks.