I was wondering if anyone else has noticed the noise of their 4G iPod's hard drive noise. It seems to be getting increasingly worse, as I never remember hearing it before, but now it makes sounds like its aching and I don't know what to do. Its a clickwheel model that I got in July 2004, I'll be getting a new one once they throw in BT, but would like to keep this one around for the heck of it. Any thoughts? Easy fixes?