I'm reposting this under it's own heading because I got no answer on this portion of my last post. When I look under Archives in the program it shows the two full backups I did, and a file called Complex Archive. I assume that's the differential But when I look in my external HD it shows only the 2 full backups -- and they show they were both modified on the date I did the differential. I see there was a place to merge the differential with the full backup, but I never selected that. Can someone clarify this for me please?