so, heres my problem. when playing a song in itunes, once and awhile the song will fade out for a few seconds and then be heard again. this accompanies crackling sounds every once and a while. i notice it seems that the computer slows for a sec when this happens. one time when it happened, all sound stopped working and so did the keyboard and mouse, so i ran hardware test and everything is fine. i ran disk doctor, tech tool, drive 10, and any other utility i could. anyboyd have any ideas what i could do to fix this or whats causing the probelm. i usually only have itunes, safari, and aim open at one time. i have a dual 1ghz G4 with a gig of ram. i have tried different songs and it always happens. help!!! update: it just happend again with a crackling noise. i also failed to mention i am up to date on software and i have harmon kardon soundsticks. i also just realized that it happens with all audio applications.