Hi. I have quite a specific problem to sort out, well it seems that way to me, maybe its common but I really need help. My first issue is when using my audio 4 soundcard (usb from pc) and using phono cables to go from my soundcard into my mixer, every so often I get a stutter in the audio im playing and the sound crackles and glitches, then goes back to normal. This makes live djing for my current setup almost an impossibility as it happens far to frequently to do any mixing. The problem happens regardless whether am I in Traktor or just playing a track using Windows media player. Is this a latency problem? Because I thought latency was the delay in feedback due to the connection going from your soundcard into a mixer then back to your computer. Any ideas? Thanks lewis.