powerbook sounds like a little bird.

[lam47]

Its going to be the HD im sure but why has it started making such a strange noise?
It never used to. Happens when using Azureus mostly.

 

[livingfortoday]

Well, Azureus taxes the hard drive a lot, as it's constantly reading and writing information you download. It seems likely that it could still be a hard drive issue. I would make sure your important data is backed up, just in case.