Compatible with Korg Triton Extreme USB Midi?

[thesilencenoise]

I've been experimenting with the demo and my new Korg TREX. For whatever reason, the device does not appear in MIDI Devices. I do have the hardware driver installed and it is recognized both in Adobe Audition and Tracktion. However, neither of these seem to be as flexible as Reaper, so I'm interested in really giving it a run.

Any ideas?

Windows 7 64 bit
Using Mackie Onyx1620i as souncard
i7/12g RAM