Reply to Traktor + sound card routing issue

I've been mixing for over a year now using virtual dj with an external sound card with no problems at all. I recently tried to get the same setup going with Traktor 2, and for some reason I can get the master audio to go out of the sound card, but I can't get a cue output using my onboard sound card the way I would with VDJ.
. . I was just wondering if anybody could share any insight or help to get it running!