The man page for hdparm details a -c switch, this doesn't seem to exist in the binary supplied. Andrew. Andrew Mobbs, Trinity Hall, Cambridge. |"In the metal and blood, in the email : ajm46@hermes.cam.ac.uk | the scent and mascara, on a WWW : http://hammer.chu.cam.ac.uk/~ajm46 | backcloth of lashes and stars" AE Tornado WWW page : http://hammer.chu.cam.ac.uk/~ajm46/tornado.html