I have the same problem as many of you does (regarding the forum posts) .. my sound crackes when i open any program, use more sufisticated screensaver, open start menu, watch divxes, etc, etc. For example .. when I open start menu the cpu usage jumps to app. 70, 80% and goes to 0% again. The result is the cracke in the sound. Later this week i have tested soem things. I was watching a short .avi movie .. fullscreen .. the sound was crackling. Then i have minimized the program and the music sounded great. So I have have come to conclusion that it could be the graphic card that interupts the sound. Am I right? What could be the problem? I have an old ATI Rage pro II+ (4mb) .. i was thinking this could be it .. but my friend has got the same problems with GeForce 2 32mb installed.