I have a situation.. I'm using a IMAC new 10.8 OSX.. I bought a USB piano synth(no drivers necessary because it's class A).. but my ImAc does not recognize the USB a keyboad at all. Ive switched usb ports.. WHen I go to About MAC, More Info, Systems, and then go to USB, I don't see my keyboard called Bass Station 2 in the USB chain.. Anything else I can do or?