I've just had two small spells of grotesque crunching noises from my iBook's Hard Drive. Crunching maybe isn't the right word actually - more like clunking. The computer wasn't able to be active at the point (beachball), and it sounded as if the drive was spinning, but it simply wasn't able to read it. The first time lasted about ten seconds, the second lasted a minute. I do have a recent backup (last night), and I'm pretty certain that this is the first sign of a hard drive approaching death. Short of calling Apple (thank God I bought Apple Care), is there anything I can do? The computer is currently working (I'm typing on it now) but am just wondering if any of you have had similar experiences, and if (by some bizarre means) you managed to fix this without a HDD change. Ta.