A couple of weeks ago, the hard drive in my 12" 1.33 PB started making some scary clicking noises that I've never heard before, I had a kernel panic and a couple of times it just froze up and I had to turn it off to reboot. Diskwarrior said it was OK, but I figured the drive was on its deathbed. But now I haven't had any problems since then. My Applecare is expired, and I'm planning on buying a new MB, hopefully holding out until the next update. What do you guys think? Is that a sign of damage?