[GraemeJ]

If it is a corrupted file somewhere it should not affect other forums (especially if it is this forum's server, perhaps interacting with a faulty cache on yours). Do the other forums have the same Themes? (Not that I suggest playing around with other forums necessarily as they might corrupt also.)

None of my other forums use the same software - but I'm looking for one that does.

Nothing has changed on this computer (my laptop) for ages. Cleared the cache and all that sort of thing. Same problem on three other machines here, again, nothing has been changed for a long time.

Are you running some kind of backup or something on your devices or router that might change a cache (or not?)

Nope !

You did not say you tried changing the Theme a few times when you discovered it this time. Did you? I presume it does not work?

I did and it didn't. Same as before, three themes are unformatted (well, sort of) and the other one returns a 404 when I try to access different things.

Does the problem show on all other devices still?

Yes, same on all of them

Check that other new user you made. Has it changed on there also?

Yes. In fact, even without logging in, I get this odd formatting.


Weird, or what?