I've come across a problem in managing the items found in some drop down lists. It seems that when I select a drop-down list to edit and then try to delete and item nothign happens. It asks if I really want to remove the item I say yes, and then it reloads the page and nothing has changed. This also happens when I try to move an item in the list or if I try to add an item.

Anybody have any thoughts as to why this is, and how to fix it.

Also as an aside, which tables in the MySQL database store the drop down list values?