I have a white 700MHz iBook, and it makes random popping noises. At first, I thought that it was coming from under the 'f, 'g,' and 'h' keys, where the airport card and memory is. I listened to it again a few days later, and like the guy at the Apple Store said, I realized that the noise was coming from the speakers. Since it was random, they couldn't replicate the noise at the repair depot, so it still pops. This has been driving me crazy! Is there any software fix I can get for this, or is there any way I can fix this? Thanks for your help!