I can't use Acronis 9.0 build 3854 because my desktop can't "see" the external hard drive in My Computer or Explorer. I have a Dell Dimension 8400 Intel Pentium 4CPU 3.00 GHZ WIN-XP SP2 Home Edition and it is running okay. I purchased a Western Digital My Book 250GB Essential USB 2.0 external hard drive as a backup resource for files from this Dell. The problem is that my Dell won't let me see the hard drive in My Computer or Windows Explorer; however, the external hard drive (EHD) is shown in Disk Management and Device Manager as F Drive and shows it as being "healthy" and "active". I have been on the phone with Western Digital and after they determined there isn't anything wrong with the EHD, they said there is something wrong with Windows on my machine that won't allow it to be displayed. I can place files on the EHD through a convoluted way of dragging them to a shortcut that I was able to place on my desktop; but that isn't the answer and doesn't always work. There is nothing wrong with the EHD because I tried it on my laptop and it registers there ... but not on my desktop where all my files are that I would like copied. I have also changed the drive to "M" from "F" but the same problem lingered ... so I renamed it F again. Is there a way that I can get my desktop to recognize the EHD in My Computer and Windows Explorer so I can get on with copying my files using Acronis? Thank you.