I downloaded this software called 'Traktor Mixing Studio', basically what it is, is a computer mp3 mixing software package. But I can't work out how to use the two soundcards options, It says i have like 5 soundcards installed and when I go to select that option....NOTHING. I cant monitor in the headphones, and have the mix playing out through the speakers, has anyone encountered this software and know how to use it?

Cheers..............The Corbzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz