I've searched the forums and documentations regarding this, but have not found a fix that works. Any help would be much appreciated.
My categories (renamed "Posters") suddenly disappeared while I was using WP 2.3.2. Thinking this was a bug issue, I upgraded to 2.5.1, but the problem persists. I did do a correct detailed upgrade, where I turned off all plugins. I had only one plugin. I had thought that the categories became affected after my host server did a server upgrade, but it seems not to be the case.
This was not a problem of upgrading as the problem occurred before the upgrade, which is what I did hoping to fix the issue.
I've also tried resetting MySQL to no avail.
My site: movieposterauthenticating.com
The categories are in the right sidebar under "Posters". I am using WP-dtree as my only plugin.