I am having the same issue Concept is having.. When i play a song it sounds like there's some kind of interferance. static noise. like an old dirty record. i performed various trouble shooting techniques to try and dertermine the source. i use an HP laptop w/ a djm-800, & turntables. I've used this same set up for almost 2 yrs w/ no issues. i used it last week and it was fine, and when i used it on sunday (11/23/08), i started hearing the static noise. i've had ver 1.8.2 for about 2-3 months and there was no prob before until now. i have not changed any settings or done anything to my PC or to the SL1 software from the time it was doing good, till the time i noticed the problem. when i play the song using serato without the decks, (from my pc headphone jack to the mixer) it sounds fine. i uninstalled the program, reinstalled it and the same thing. I even used another firend's serato box, and it still did the same thing. internal mode as well. i played a regular vinyl record and it was fine. i changed rca and usb cables and it did not help. Do you know of anything else it might be??? can you help??