[altemir]

I have Pro Tools LE 6.9 running on Windows XP with a Digidesign MIDI I/O hardware interface.

When Pro Tools is not running, my keyboards correctly broadcast their MIDI OUT signal on all ports via the MIDI I/O interface. However, the MIDI OUT signal from the keyboard stops transmitting whenever I launch Pro Tools.

I suspect that it has something to do with the MIDI Studio Setup, but I can't figure out what's wrong. Any suggestions?