Does anyone know if i can use my EDIROL UM-1EX usb midi interface, from my old Roland XP-60 synth, on my Macbook Pro with Logic? i just bought the Apogee Duet for Audio. do I need to get a new midi interface? i've loaded the driver from the Edirol & plugged it in, but it doesnt show up in the Audio Midi devices window... it still works on my PC. Is it a phantom power problem via the usb plug? does the Macbook Pro support this particular interface?