Hi, I have TI 10 Home (latest version) running on Win XP Pro with 2 external Western Digital USB 500GB hard drives connected. Both external drives work perfectly and are consistently recognized by Windows with their usual drive letters. I use one of the external drives (Drive H) as my TI backup destination and the other (Drive I) for my My Documents folder (remapped and recognized by Windows as the default My Documents folder). Both drives show up normally in the TI "Partitions Selections" screen. The problem: I can do a data (My Documents folder) backup from Drive I to Drive H no problem, but I am unable to do a partition backup from I to H (or vice versa) -- at the end, when I hit "Proceed" I get an error/abort message and the log contains the following lines: "Can not find a partition with the path \local\hd_sign(8D399BC0)" and "No source is selected for the operation. Terminated." However, I am able to backup my main drive C as a partition to H with no problem. I would prefer to do a partition backup from I to H because it's much quicker. Any thoughts/help??