[chuck-users] MIDI event problems-- no note-off events

I'm running into problems getting the MIDI polyphony working. Specifically, in the ChucK examples, I'm catching all of the noteon messages but none of the noteoffs. One thing, I don't really understand what "off @=> us[note];" is supposed to do, when "off" is an Event. Basically, all of my noteon messages are coming as [144 key vel] while my noteoffs are coming as [128 key 64]. How does this work? I don't see anything for message 128 in the source code. I'm testing on this one: http://chuck.cs.princeton.edu/doc/examples/midi/polyfony2.ck Thanks everyone. I tried reprogramming my keyboard (Korg Kontrol49) but I couldn't figure out how to make it work. Andrew