So recently i just bought a Yamaha UX16 5-pin to usb wire...it goes from my Casio CTK-471 keyboard to my mac...jus bought the mac about a month or two ago so its basically brand new. Problem: I get the wire hooked up, go to the Midi Settings, get that all hooked up the right way and hit test settings. The Midi out is working, but not the Midi In. Im stumped. Ive looked at about half a million different solutions and none are working. Hopefully, some of u might have an idea. Thanks in advance.