Hello im from spain i just buy a kontrol z2 and everything was working fine i installed the program etc, and started to play some traks in my turntables , but today i switched on my mixer and no sound comes from it here i post a video of the problem, i tried installing traktor pro and drivers 2 times and that not solved the problem, help will be appreciated, thanks

http://www.youtube.com/watch?v=iW1Sx...ature=youtu.be