Reaper Can't Find MIDI Inputs/Outputs

[amyjer]

I am a new Mac user (New iMac) and I ran into a strange problem after installing Reaper. While Reaper recognizes my Onyx 400F audio inputs and outputs, it does not recognize the Onyx 400F MIDI Inputs/Outputs.

Is there a setting I am missing?

Any help would be greatly appreciated.

Thanks.

Jeremy