Hi,
Thank you for your reply. Yes, I've checked Logic's preferences and everything is looking good.
The problem is that the operating system (Yosemite) is not seeing the keyboard. I've used this same keyboard on older mac operating system and it worked just fine, even without any drivers. It was plug and play. Just to clarify, I'm not trying to use the toneport kb37 as an audio interface, I'm just trying to use the keyboard as a midi interface for virtual Logic instruments.
Now, the keyboard is not even powering correctly, the needle gauges are flickering on and off and after a few seconds from plugging the keyboard in it turns it self off. Tried 3 different usb cables and all the usb ports in the computer, still nothing. Also reinstalled the drivers (mentioned above), and..... nothing changed.
Best