I've a 2-year-old Windows XP machine with 5 disk drives; some IDE, some SATA. PBR 2010 Suite (Registered) runs fine on everything except a new external hard drive. It's a WD 2TB SATA drive in an Airlink 101 USB case. Drive is NTFS formatted, currently 1 partition 1.8+ Terabyte. Windows XP has no problems at all copying files to/from this drive. Paragon sees it in the Disk view, but not in the Backup view. A WD My Book drive in the same USB port is recognized. I've reformatted the drive with no change in the problem. Any ideas? I'm baffled.