Need help getting MIDI controller to connect with Fast Track Pro

Hi all - 

I'm able to get midi to play when I install a soft synth (like TTS-1 or S1 Drum Kit), but I can't get my midi controller to sync.  I recently upgraded to X1.

I'm using a KORG K25 as my  controller, plugged into the wall and connected to the back of my Fast Track with a midi cable.

What settings do I need set to make this thing trigger midi events?