multiple MIDI note problem

Hello all.

I’ve recently started recording again after RL circumstances have prevented my muse. Anyway, the issue I’m having now is that when I real time record MIDI notes into Cubase 5 using my M-Audio Axiom keyboard, I get three identical notes recorded for each instance of note. I’ve tried everything I can think of, but to no avail.

Cubase 5.5
Windows 10

Any ideas?