I couldn't figure out how to do that with the previous version, but got it working with the demo of the new version so bought it with the controller and then thought I was 'done' solving this mysterious problem. If so, then I wasted my money, as I expected to be able to also use it as a normal VI, to record MIDI parts that I've already entered. I could swear I had this working when my Spark LE controller arrives with the Spark 2 software a few weeks ago, but I hadn't yet gotten around to using it in DP so maybe it's only possible to use Spark VI as a sound source when playing it in real time from the controller?