My forums structure are as below:
Those above display one index page as the same as the the structure above.Category1
--Forum A
--Forum B
----Sub-Forum1
----Sub-Forum2
Category2
--Forum D
--Forum E
----Sub-Forum4
----Sub-Forum5
But, I found the different structure in the drop box (when using "move topic" function or when create new forum/category in ACP). I was not like that before. I happened after I changed the parent forum of a sub-forum
Please note, Those forum above display correctly on index page as the same as the the structure above. In the drop box, I found that Forum E is a sub-forum of Forum D. It is real wrong.
Anyone know what field of forum table of the database is to decide these? Could anyone help me?