I’ve uploaded some of the files, but a whole shedload are still missing. Serves me right for not being sufficiently organised, and having files scattered across five hard drives on four PCs. All the files from my laptop and home desktop are now uploaded. There are some on my work desktop. There are also some on a "retired" desktop that sits in a corner at work, quietly gathering dust. It may take some time for me to get to the files on that one.