SP > Protools

[typhy]

I am trying to set up:

MIDI track
Aux trck
Audio track

Record MIDI, edit MIDI notes, and record those notes onto an audio track.

MIDI track's input set to: ALL (records notes from my MIDI keyboard)
Output: Slim Phatty channel 1

Aux track's input set to: Interface input 1 (audio cable from SP OUT to interface IN)
Output: mono bus 1

Audio track's input: mono bus 1
Output: Master

However, my SP always goes nuts when I set the MIDI track's output to SP channel 1.
All the knobs freeze and sounds go haywire. I always have to turn off SP and turn back on.
But it happens everytime I set the MIDI track output to Slim Phatty.

My SP is connected to my computer via USB and all the MIDI settings inside the SP is set to USB.
What's wrong with my SP?

[typhy]

I just tried getting rid of the USB cable and using only MIDI cables and it still wont work correctly.