So as some of you may know I've had some issues with Vista and I was going to get another laptop with XP on it. Well, the last couple of days I've been practicing, I have my stuff set up at home and I'm working on cross fading and trying different song combinations, practicing my singing etc. I noticed that when I shut off the internet connection on the laptop and it wasn't looking for a signal or maintaining a connection etc. that the crackle went away. Also, at the same time using the Behringer instead of the internal sound I don't seem to be having problems anymore. I'm going to do some more testing and report back. I don't know if any of you are having any Vista problems, but if this can help someone else, then great.