I have had my Midi Fighter Pro Beatmasher for quite some time now and i just upgraded to the DN-X1600 which required a usb port on the computer (not USB Hub compatible). Since i am running a Macbook Pro which only has 2 usb ports, i am using one for the DN-X and one for the hub. I have tried plugging the MF into the hub, but its not being recognized. I am wondering if there is any solution to this? Thanks!