Fixing Airport Audio Glitches…
Dunno if anyone else had this problem but I found Traktor was dropping out and glitching recently. The only way to fix it was to disable my airport card (running on macbook pro 10.4.11). Apparently it’s due to a bug in the latest airport update from apple. This thread ( http://discussions.apple.com/thread.jspa?threadID=1463824&tstart=0 ) tells you how to fix it! 
interesting point. Thanks for sharing! which version of traktor are you using? Was this only with one sound card?
I’m using Version 3.3.0.180. And no, it was with every sound card I tried! - Numark DXM01USB, Presonus Firebox, Internal soundcard and my Digi003Factory all produced the same results. Just had a mix with the downgraded airport and its all smooth again now, wierd!
I Have The Same Problem.
I Simply Turn Off Airport If Using Traktor