When you add an area it has some small errors involved that can be pesky. The add.php function
when you an area does not return a valid header (area= ). With area blank it can cause some
annoying side effects when adding rooms right after adding the area.
I've fixed this with a small repair for my own copy that my organization uses but I just thought I'd
let you know. Its not a big bug to fix, just have in the if statement in add.php where it branches
into creating a new area, do a my_sql query to get the number of areas and save that into $area.
After that was in all of the minor bugs went away.