Hi. Recently I've been having clicking noises with my Toshiba 500GB HD in my MBP. I've downloaded two programmes (plus there's Disk Utility) and they say: Disk Utility: Verified SMART Utility (http://www.volitans-software.com/smart_utility.php): Failing SMARTReporter (http://www.apple.com/downloads/macosx/system_disk_utilities/smartreporter.html): Passed Interestingly, I ran the same programmes on a different computer with the same drive and got the same results. Can anyone shed light on this? Thanks.