Joel Jaeggli said: >thermal recalibration > >http://www.storagereview.com/guide2000/ref/hdd/op/actRecal.html > You can also get a program called Drive Fitness Test (DFT) for some of the Hitachi/IBM Travelstar drives from Hitachi. However, if the drive makes a loud "clack-clack" noise like the hard drive heads hard parking, this can be a sign that the drive is failing. If the noise sounds like a "click-click-click" noise, it could be the hard drive recalibrating due to temperature changes. In any case, a good, verifiable, recent hard drive data backup is always a good thing. -- James McKenzie A Proud User of Linux!