Two soundcards Cross DJ

I'm helping a friend with his Cross DJ setup. he has two soundcards in his computer and want to output the master thur one soundcard and the cue on the other. Is that possible and how do i achive that?.
i have downloaded the demo and is trying to do the same on my computer with my two soundcards and cant get it to work, is ther a limitation in the demo for that?
thanks Johan
i have downloaded the demo and is trying to do the same on my computer with my two soundcards and cant get it to work, is ther a limitation in the demo for that?
thanks Johan