Currently Being ModeratedMay 25, 2012 5:58 AM (in response to Bobby Simons)
Try going to layout mode. Select the keyboard(PCR) on the screen. You'll see a blue rectangle appear around or below it. On the left side of the display under hardware input, select device. You should see a list that includes the PCR-800. If all these selections are gray, go to Audio MIDI Setup to configure your devices. If the PCR-800 doesn't appear in Audio MIDI Setup, try unplugging the USB cable and replugging it. I have duplicate keyboards, too, and sometimes I have to go through this process. If none of this works, get back to me.