I've got a new brand new IMAC which won't recognize my PSR-270 keyboard. I'm hooked up with a Yamaha UX16 adapter and downloaded the latest driver form Yamaha. When I start the IMAC the power light in the UX16 lights for a moment then goes out.
Any advice will be used to stifle the urge to heave equipment out the window.
Any advice will be used to stifle the urge to heave equipment out the window.