This is really weird, but has been like this since I got my iBook on August 12th. If I open TextEdit, and press any key, it produces a "squeak" noise. It sounds like its coming from the speakers, but I'm not 100% sure. If I hold that key down, the very low squeak sound happens over and over until I let go. It's VERY faint of a sound and I can only hear it when everyone's really quiet and I try and type more softly than usual. This doesn't happen ANYWHERE else, besides TextEdit. Any idea? All my keys do this, not one in particular. Again, ONLY in Text Edit. How weird is that?