For some reason since day one of ownership my iBook's audio balance keeps changing either all the way to the left or right. I'm pretty tired of having to reset it to the middle every couple of days. Anyone know what the problem can be? Also I have a brand new 12 inch iBook I bought a month ago. I'm a little worried because one of my PCs that had that problem had to get it's motherboard replaced for a similar problem. I'm a little annoyed by the problem because none of my other Macs have had this problem.