Are you on a 64 bit machine?
What happens when you select the 5th in the list? I don’t think it’s likely that it’s a latency issue if traktor shuts down like that.
Some random tips: have you updated to last version of traktor? Have you tried different usb port? If applicable: does it work on another pc?
Useful to try: use the soundcard for something like itunes or wmp to see if it works with that.
not getting any sound to come out through the sound card. i went to control panel → sound and enabled it so that sound should go through (there is a little green check next to it.) and it shows the green bars moving when there is sound, just nothing is coming out. the volume for everything is turned up.
when i select the fifth from the list nothing happens. (No sound or anything)
If the djio has 2 stereo outputs, two djio icons should,appear in the Windows sound output manager - try selecting the other one see what happens.
Maybe rebooting works? Otherwise try uninstalling and then reinstalling the (latest) drivers. I can’t really think of any other general tips.
Is there a message or error code when traktor quits?