I just got the Focusrite Scarlett 2i4 audio interface for my system. I am using Traktor 3 with the Hercules RMX controller. After adding the Scarlett, everything was fine for a couple gigs, but suddenly, the Hercules no longer controls Traktor. I opened Virtual DJ, and Hercules works perfect there, but not with Traktor. I went through all the settings in T3, but nothing seems to do the trick. I even re-loaded the midi mapping, again, nothing. I suppose I can get through this weekend's gig without the controller, but it (the RMX) sure makes mixing easier then using the mouse. If you have any suggestions, I'd appreciate it. Thank for the time.