Yea, the MO8 is an older board, but not old enough to be giving you these kind of problems. It should be able to work with all the latest technology. This is most likely some parameter in the MO8's MIDI setup. Try comparing the various parameters in its MIDI setup to the MIDI setup parameters of those boards that DO work OK, but the fact that a few key presses work OK before it acts up sounds like some kind of a buffering problem. Normally I would suspect aftertouch, as some aftertouch systems can literally swamp a MIDI stream with aftertouch messages, but while the MO8 receives and responds to aftertouch, it does not transmit aftertouch. It has no pressure sensitive aftertouch strip under the keys, but sometimes an errant mod wheel, or knob, or slider can do the same thing. If you are using a Windows based PC, I recommend downloading a shareware MIDI diagnostics utility known as MIDI-OX (
www.midiox.com). Once installed, go into the MIDI-OX
Options > MIDI Devices menu and select the MO8 as its
MIDI Input Device. Each time you press and release a key, you should get four messages: the
Key that was pressed, a
Note On, a
Velocity figure, and a
Note Off. If that is all you see, then you are just back to something in the MO8's MIDI setup, but if MIDI-OX is showing a bunch of other garbage, then that is probably your problem. If so, it is more than likely
Control
Change (
CC) messages. Get the CC message number and look it up in the MO8's MIDI Implementation Chart to see which physical controller (Mod Wheel, knob, slider, etc) it is assigned to, and you have your culprit.