I plugged in my iPod into my computer to update it. When I did so, a screen appeared with a disc (what looked like CD) and a magnifying glass over the right section of the disc. There was also a status bar on the bottom. While this was going on the hard drive spun up for the duration of the time the bar was on the screen. After the it finished whatever it was doing it shut down like I had never plugged it in. I replugged it in, and everything appeared to work. After this reinstalled the software on my iPod, because I thought that would be prudent. Is this something I need to worry about? Thanks for any input.