I've been spending quite a bit of money upgrading my PC lately. I've noticed micro-stuttering in games, even micro-stuttering during general usage. The general usage stuttering went away with an OS upgrade. A new CPU made everything a bit snappier. But now I notice the following: Copying a file from the drive to itself; write speeds casually and gradually drop to 20 MB/s, worse than USB transfer rates. I'm extracting several files right now that are each several gigs, and my computer slows to a CRAWL. Text takes forever to appear on the screen. Windows become unresponsive. Also the files, for some reason, take up to 10 minutes to extract; it really shouldn't take that long. My CPU never goes above 20% usage and yet everything is slow as molasses. Watching an HD movie is laggy and jittery despite that my computer is more than capable of playing these. Is my hard drive bulloxed? The only thing I haven't bothered to upgrade is my motherboard, and I'm leaning towards the hard drive being the real culprit. It's a 500GB Hitachi Deskstar with only a 16 MB cache. I'm not sure on the model number... is it failing me? Thanks!