ProTools LE MIDI problem with my keyboard Options

[pajordan]

I'm a newbie.  I have ProTools LE (5.0.1, I think), Digi001, and a Quicksilver G4.  I'm having problems with MIDI - when I record enable and start playing, the patch I have chosen on my keyboard and the patch coming out my Digi001 don't always match.  It's annoying.  I've reverted to recording everything as audio, but for percussion I'd like to use MIDI.  My keyboard is a Yamaha PSR-530.  I'm planning on getting a new keyboard soon, but in the meantime, I'd like to get this working.  Any suggestions?  I'm fairly sure all the hardware connections are correct.