Even wierder. A friend points out that the lastclip.txt files should be unique for each partition. Having successfully copied the two odd partitions (‘cards’) to my external drive this AM, I compared all six cards. All do have unique lastclip.txt files, as they should.
BUT when I just now powered up the P2store, six partitions (NO NAME) show up on my desktop–and when I open lastclip.txt on them they ALL have the same text.
WT…um, heck. I’ll be using the P2 store to copy these partition into a different computer today; that should show whether the problem’s in the P2 store or not.