As some of you may have noticed (in particular,
@Spoonboy and
@Zapper had written to us about it), the Forum is behaving weirdly these last few days. An initial investigation has revealed a configuration problem that came out of nowhere, and it looks like dealing with it eliminated most of the misbehaviour (in particular, custom themes should be loading correctly now). The main exception are attachments, which aren't being retrieved or saved correctly. While I think I know what's going wrong with them, fixing it will probably take a few extra steps. Until we get to the bottom of it, attachments will be temporarily disabled across the whole Forum, so you won't see the names of the files under the posts, or even the buttons to attach files.
Note that
the attachments have not been lost: The files and their metadata are safe and unchanged on the server; it's just that the Forum software is momentarily unable to put two and two together and retrieve the files, for what seem to be very silly reasons.