I've recently began experience sound problems with my macbook. It started happening about 2 weeks ago. Whenever i'm running bootcamp with windows xp sp3 and play songs in itunes, sooner or later the songs all of a sudden mutes and other applications with sound that were alway playing develops feint white noise while the quality of the sound drops dramatically. To 'fix' this, I pause the song playing in itunes, and unpause it. After this is done, the sound comes back and the sound quality of the sounds from other applications goes back to normal. I would tollerate this if it were just once or twice, but it's happening more and more often.
By the way, my macbook is hooked up to external speakers but the problem is also starting to develop on the laptops speakers now too.
I've searched around for answers already but can only find this problem on the mbp's and the problem lays with the female connectors... That's my understanding of that problem anyways...