I have read macbook hard drives often go out... I have a black macbook 2.2ghz w/1gig of RAM and every time it returns from sleep mode I get the spinning rainbow beach ball and it takes FOREVER to do anything. It's not completely locked up, but it is basically unusable. I turned off sleep mode yesterday and now I'm not having the problem - everything seems normal. Is this a common indication that the hard drive is failing? I should also mention that last week, before all this began, my hard drive was randomly spinning up for long periods of time when I wasn't even using it. Sometimes even when I closed the screen to try to put it to sleep it kept going. It didn't normally used to do that, but could that just be a normal function of spotlight backing up or something? Not sure if the two are related or not. Thanks guys!