node/add page shows 2 of every type. How do I fix this? My node/add page (Add Content) shows two of every content type!

Here is a screenshot:



I am 99% sure this is is a database problem, but my database node_type table looks OK and only has one of each type.

I have disabled every module I could, updated everything, and have no errors in the log.

When I point my installation at a fresh database I do not have the problem.  When I point a fresh Drupal installation at my current database I do have the problem.  It seems like database to me.

Using Drupal 7.15.

Any idea on how to fix this?
I've fixed it.

The problem was that the table menu_links had duplicates in it for the content types.  How they got there, I have no idea.

The fix is to find the menu_links table using phpMyAdmin and search for the links there were duplicates of (title link_field using LIKE %...% operator). Then simply, drop them from the table.  The reason is because the node/add page is just a page (or Overlay) view of the items in the "Add content" menu.