When in the MyBB Administration panel, and under Forum Management, I click Manage Forums, it either shows nothing or only one category/forum.
But on the main forum, it shows all of the categories and forums.
I don't know what's wrong. I'm running 1.2.12.
Also, I've noticed this too... When I edit a theme, and then save it, and then load it again, it reverts back to it's original CSS not my edited CSS. And, when in the board settings area, and I save a setting, it says it saves but then it doesn't.
As for the first problem I am not sure of, however the second problem I had the same problem myself. It's to do with what your hosting company have set your PHP config settings as. Let me just grab my thread for the solution... *go's searching*
Here you go
I added the .htaccess stuff, and it still doesn't seem to be working... I'll talk to my host too.