Due to my own foolishness involving a third-party Dropbox synchronisation client on my new computer, I’ve accidentally changed the folder structure of my entire Dropbox account.
Any dropbox links I posted before today will no longer work.
In future, if anyone has an urgent need to download something I posted as a Dropbox link, I’ll be able to look for it and give a new link, eventually, but I won’t be going through my old posts correcting links.
Lesson: If something is working well, don’t change it!