Hi Tim, Don't know if you have solved your problem yet, but if not, which operating system are you using. Tricky to advise without knowing. George. From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of Tim Crawford Sent: 01 April 2009 19:36 To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] Help initialising an external hd Hi, I'm having a problem installing a new samsung hard drive and external caddy I've fitted the disk in to the caddy, and connected it to the pc via usb. Although I received the sound indicating a new device has been detected, the drive isn't showing up under my computer. It does however appear under disk management, as disk1 basic rather than having a drive letter assigned to it. Upon reading up a little, I gather the drive must be initialised, however I'm unable to select it in order to do this. Any help much appreciated. Thanks, Tim.