I've had my 17" PB for about 5 months now, and I delighted with it.
However, I recently noticed two things that have been bothering me slightly. Firstly, if I listen carefully I can hear what I assume is the hard disk accessing almost all the time. The noise is coming from roughly the centre of the keyboard, and is quite obvious if I put my ear to it. The worrying thing is that occasionally the drive makes a little 'click' noise - actually, its better described as a soft 'clunk'. I wouldn't pay it much attention if it only made this noise when I performed an operation like saving a document, but it's doing it when the computer is, for the most part, idle. What is this noise, and is it normal?
Also, I've noticed that, where the metal casing meets the grey plastic in the bottom right corner of the PB, there is a small gap. It's only very slight, but it's also the only gap and therefore quite noticeable when you know what to look for! When I look closely from a lower angle, I can see that the metal is slightly higher than the plastic, whereas in all other areas they meet at the exact same level. I tried pushing down on it gently to see if there's any give in it, but it's solid as rock. I can't see how it could have been damaged, as I use my PB as a desktop solution and am very careful but to knock it. Does this slight imperfection sound normal?