Hello, I purchased a Western Digital MyBook Premium 500GB about 18 months ago, and recently I have encountered a very strange problem. As it is the first problem I have encountered with any hard drive (strangely), I have no idea what the problem could be. When I connect my hard drive to my iMac using FireWire 400 and start transferring files, after a few minutes, the hard drive will just freeze. The Finder stops responding and the file copy operation just stops. I can't even force quit the Finder. However, as soon as I disconnect the hard drive forcefully, everything returns to normal. I do not experience the same problem with any other external storage devices. I did do a quick search of the internet, however, my searching skills are not particularly great so I have not found anything of help. Any help will bre appreciated. Thanks.