Please help! I have 2X CDJ2000 connected to traktor, they work fine.when I plug in my DJM900 NXS the setting utilities shows up.when i go into traktor it will show DJM 900 in the audio setup, but nothing in the input or output routing. I am using traktor Pro 2 v.5.6.5 which is the latest. what am I doing wrong? Or Do I have to be using tractor "SCRATCH" pro?!