Nicolas, thanks for the idea. That was exactly right. In my custom.el file, the org-agenda-files turned out to be set with a static value of some files. I don't know how it got there, but now I have deleted the entry in the custom.el file and everything is back in order. Many thanks for solving this problem; it feels great to be able to again use my system for monitoring dates for different set terms I closely have to follow. It would have been a mess should I had to reconstruct those dates some other way. Case closed! /Tor 2013/10/24 Nicolas Richard > Tor Eriksson writes: > > I have the impression that this behaviour of all files not being > > correctly added to the org-agenda-files started when I chose the > > option R[emove] file from org-agenda-files proposed by org. This > > occured when org tried to build the agenda but realised that one of > > the files named in org-agenda-files was not there. After that, it is > > my impression, the problems started. > > I don't remember how the "Remove" option work, but perhaps you should > search for the string org-agenda-files in your .emacs (or init.el if you > use that), perhaps it has sneaked in a custom-set-variables declaration. > > -- > N. >