EricB. Sorry for the confusion. My system drive is a Western Digital 120GB with my ext. hdd being a Lacie 160GB. My post of yesterday brings the story up to speed so far (re the Lacie). I have now decided to leave alone the Western Digital with the exception that I'm considering forming a separate partition for my OS. Can you confim whether the application to which you referred yesterday is compatible with disks other than Maxtor.