this may of been mentioned in the feed already (not read it all) but recently read impassing, that the NI S4 uses some form of Protocol that is 4 times faster than Midi Which NI developed (so cannot remember the name of the protocol or the artical) my guess is that that is why the F1 and traktor is locked if anyone knows of the name for it their is more than likly to be a midi to hid Protocol translation software out there...
but the answer might not be in software after reading this...
http://www.electronicsinfoline.com/N...interface.html