Well, I booted my laptop this morning (Gateway MX8 series running Windows Vista) and I am greeted with a message that the hard drive may fail. There is now an icon in the system tray reporting a "S.M.A.R.T" event. The computer is working fine (for now) and I have backed-up all my useful information onto CD's. Does anyone have any idea what causes this or if it is anything to worry about? Having read the Gateway FAQ's replacing the hard drive seems straightforward enough, if I in fact need to do it. Any comments from the experts appreciated. Thanks.