I had a Filemate external SATA enclosure so I purchased a Hitachi Deskstar 1TB internal eSata drive to put in it. Fit just fine, but when I connect it to a Vista Ultimate 64 or Win XP machine with either the eSata or USB cable neither PC will recognize it. The Vista Ultimate 64 PC doesn't see it all with eSata or USB. The Win XP PC knows the USB device is there, but recognizes it as unknown. This is an un-formatted drive with no drivers in the box. When I went to the Hitachi site I coulnd't find drivers for this drive. Do I need to install drives before I can format it? How do I format it once that is done? If anyone could help it would be appreciated.