Holy crap is all I have to say. My MacBook has been shutting off randomly around 60% of the battery life, but I was trying to change an icon to something else (MacBook was unplugged) and it shut down, at like 80% I'm pretty sure. I was thinking this was a battery problem. When I booted it, it booted with a progress bar that froze at about 1/4 the way. I tried resetting PRAM, I tried resetting SMC, I tried safe boot. After all of that, I just gave up and tried going to sleep from my headache while it was doing the loading bar. I saw a flash of light from the laptop, and looked over and a window popped up saying I shut down the laptop unexpectedly or something like that. Now it's working fine, and it's plugged in. Is my hard drive going bad, or is it a battery problem, or both? I'm already gonna get a new battery soon, but should I invest in another hard drive/SSD? t's a late 2008 model, with the original battery, but I replaced the hard drive with a 320GB when I got the laptop, the 320GB was lightly used, if at all used.