I've had these Altec-Lansing ACS495 speakers/subwoofer since I got my Dell a few years back, and I've always seemed to have a problem with this hissing/static-like noise coming out from the speakers. Even when disconnected from the PowerBook, it makes the noise; it gets worse when I connect it via the headphone jack. Sometimes, this noise gets so loud, it drives me absolutely nuts, and I end up using my PB speakers instead. I tried moving the subwoofer around to see if that caused some frequency problems, but that doesn't seem to work. I also tried moving the speakers away from the screen, and no luck there either. I don't know what to do; when I'm off to college, I'm going to get a new set, but meanwhile, I want to see what I can do with these at home. Is this just a design defect, or am I supposed to move X away from Y? This problem has been bugging me for about 7 years, and I'm determined to find what's the problem! Thanks!