Tonight, my Macbook suddenly froze (I had Firefox, MS Word, Text edit, iTunes, MSN messenger and Ventrilo on). Despite my multiple attempt to force quit, nothing came up, so I pressed the power button until it shut down. There was a strange clicking noise coming from the spot next to the battery, although I can't say I'm absolutely sure that's where it was coming from. Anyways, I tried to restart it, but all it does is light up to the gray screen, give the Mac starting sound, then instead of the apple a folder with a question mark on it appears. No matter what I do, it refuses to restart. What's going on? Is the hard drive failing? Just some background information: I had this Macbook for almost 2 years (specs in sig), and lately it has been freezing up (sometimes just individual applications, sometimes the whole computer) more frequently. I kind of just brushed it off. And it often runs a lot hotter than it should be. Like just running Firefox and iTunes will get it to 60+ celsius with the fan kicking in loud enough to be heard clearly. That has been happening for probably close to a year but again I just brushed it off . Can anyone please help?