Midi Issue in Acid Pro 7

I have used Acid for years. Not an expert but I am familiar with it. I recently purchased the NI Komplete Kontrol S61 controller and have been trying to use with Acid.
I have recorded a midi track. I can hear the keyboard as I record. I can see the data that I record in the midi track view. I can see the volume meter responding as I playback, but I cannot hear the playback. I am sure it is something simple but I am at a loss. Does anyone have any suggestion?

Thanks