Hello there! I just got Logic Express 8 about 2 weeks ago and I've been trying in vain to get my Yamaha EZ-AG midi guitar to work right. I solved the first problem using a Transformer to filter out low velocity notes caused by touching the fret buttons but not picking a string. Sounds great with software instruments like guitar and piano that fade away quickly, but with strings and organs, Logic keeps playing the notes indefinitely even after I lift my fingers off the fret buttons. Playing using the AG's built-in sounds and speaker does not produce the same problem. Switching to a Yamaha MIDI interface did not make a difference. Yamaha support (very quick to reply) confirms it's supposed to send a note-off message when your finger lifts off the frets. The MIDI monitor in the Environment shows notes keep playing. (Once I apply the Transformer to filter low velocity notes, even the mute bar on the guitar does not work to stop the hanging notes, 5 minutes was the longest I noted before hitting space bar to stop the hanging MIDI notes.) I LOVE the idea of playing strings with a guitar interface, but these hanging notes create terrible dissonance when notes from 2 or 3 different chords keep building together. Anybody know why this happens? Similar problems with keyboard controllers? Yamaha says Logic is not interpreting the MIDI messages correctly. I'm no whiz but I thought MIDI was not really up to interpretation: it's on or it's off. What do you think?