I thought soundcards were a waste of money, but I noticed that my Logitech Z-4 speakers had a slight static sound on some of the music I listen to (Drum n Bass, Trance, Classical). Especially during some of the higher pitch sounds. I played with my equalizer in my media player and through multi channel sound manager in Win XP. The only way that I think that I can solve this problem is maybe with a soundcard, but I don't know too much about them. I only use my computer for music and games. Please help.