I have a Windows 2003 server using Acronis. I have two USB 2.0 external 300 GB hard drives that I'm backing up to. I alternate them every night--only one drive is connected at any one time, and the other gets carried offsite for safekeeping. I have a problem in that the backup job fails every other night. What appears to be happening is that Windows assigns different drive letters to each drive as I disconnect one and connect the other, which throws the backup path out of whack, causing the backup to fail on one drive. I cannot assign the same drive letter to both drives in the Disk Management console, as the drive letter I want to use (associated with the first USB drive) isn't available when I switch to the other drive. What is the best approach to take here? I need to be able to have the backup job run on both drives, regardless of drive letter issues. Should I just make two backup jobs, each reflecting the drive letter Windows assigns each drive, and just let one job fail and the other complete every night?