pauln600 – You can safely delete the folders wp-includes and wp-admin and reupload them from a fresh copy of WP, without harming the sanctity of your data :
Well, that’s what I thought/hoped – but after I replacing the files, the admin dashboard reports:
“You are using WordPress 3.1.2. Update to 3.1.2”
So I would naively assume that some database updates were attempted…