The only difference I see with the acceleration slider is when its full down it sounds really bad, and when its full up it cuts in and out with popping and crackling. I'm not having any trouble with pc games, or music. Seems like an FSone/soundblaster audigy issue, although it did sound the same with my onboard realtek sound. Like I said, it sounds ok with the DA 100 sound selected. I'll just have fun with that until it's worked out, new software and all. Just trying to help out, listing my problem.