I have a Seagate 3000GB external drive which is about half full of images. I use Win 7 Home. I use a SATA to USB rig that I've used for years and the rig works fine. Initially, when I connected it, Win 7 saw it, but stated it had to be formatted before I could use. I didn't want to format it and lose all the imagery data. Now, when connected the drive does not get a "letter" assigned. When I found it once in Computer Management, I saw it, but it didn't have any data on it and it wasn't initialized, it didn't even show as a drive. I mean HDD0, HDD1, etc. Now, it doesn't see it at all. Anybody have any ideas?