Reply to Denon DN-X1600 + Traktor Kontroller X1 - doesn't work?

Hello guys!

I've just bought the setup, that we've been talking about, and I have a major problem. When I am using the mixer it works well in MIDI mode and X1 also worked the first time I pluged it in, but when I restarted everything, few hours ago, the X1 just doens't want to work anymore. I've tried several things and on the start the computer recoginzed it, but now it doesn't even recognize him.

I have the Denon DN-x1600 mixer, Traktor Kontroller X1 and Traktor 2 software.

Any sugestions?