Does anyone have any ideas about what the problem is with the drive? It seems to be working quite well for the most part at the moment. I've been having these similar problems about once a week for the past 2 months or so.
What make/model/size is it?
Please don't say Maxtor 300Gb
I'm so sick of RMA'ing them
Usually it's the electronics that fail - I've gotten around a few dead drives by replacing the mainboard from an identicle drive (but unless you're familiar with doing it and don't mind having 2 dead drives instead of one if anything goes wrong, I'd stay away from trying it)
The 'clonk-clonk' noises are normally when the drive fails to read a sector too many times and recalibrated itself - there can be a few other reasons but that's the most common cause that I've seen (checking the SMART results with a util like hdtune
www.hdtune.com you can see the error counts go up - well, they go down for some and up for others, but you get the point)