Logic Pro, noise coming when MIDI Out or USB/MIDI attached

When I try and record my Korg R3 in Logic Pro I get background noise from the MIDI-Out. When connecting the R3 via the USB interface to LogicPro I am able to use is as a MIDI controller to play the software instruments. When I then try and record the R3 via Alesis Linelink I get background noise. If I disconnect the Korg/USB the noise goes away.

I thought that this was something to do with the R3 so I connected it to my MacBook Pro/Logic via EMU Xmidi interface that links a USB interface to a MIDI/In/Out. I got the same noise issue when using the EMU until I disconnected the EMU MIDI/Out to the Korg MIDI/In.

I also get the same symptoms when using Garageband. Not sure if this is a USB/MIDI driver issue or config problem