Create Forum topic has no categories box (5,3)

In addition to the original problem description, I've also noticed that for entries made without the box, the breadcrumb only shows "Home » forums", no categories showing after that at all.

I've tried to find the time frame for when this happened. It appears to have occurred around the time when, in trying to troubleshoot another problem, I had disabled then re-enabled all modules, including the forum module.

I wonder if that could have something to do with this happening? I found a forum message here on Drupal.org mentioning something about this, but they had no lists at all for the forums area. Not sure if that's relevant or not.

I also forgot to mention the theme in my original post, it's Bluemarine.

The following are cleaned up entries from the modules list and have version info as well as their purpose and dependencies are there also. Sorry it's so long, I'm just trying to provide all the information I can in hopes someone can help!

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Core Required (enabled):

Block 5.3 Controls the boxes that are displayed around the main content.

Filter 5.3 Handles the filtering of content in preparation for display.

Node 5.3 Allows content to be submitted to the site and displayed on pages. Required by: Article (enabled) System 5.3 Handles general site configuration for administrators.

User 5.3 Manages the user registration and login system.

Watchdog 5.3 Logs and records system events.

Optional Core (enabled):

Blog, Blog API, Book, Comment, Contact, Forum, Help, Menu, Path, Ping, Profile, Search, Statistics, Taxonomoy, Throttle, Tracker, Xstatistics

Other Modules (enabled):

Account Reminder 5.x-1.x-dev A small module to resend the welome email to those users who have yet to validate their email addresses.

Akismet 5.x-1.3 Use the Akismet Service to protect your site from spam.

Article 5.x-2.4 Allow users to view nodes of multiple types in a central location. Depends on: Taxonomy (enabled), Node (enabled)

Code Filter 5.x-1.x-dev Provides tags for automatically escaping and formatting large pieces of code.

Comment mover 5.x-1.x-dev Move comments to other threads or convert them to nodes. Depends on: Comment (enabled)

Comment RSS 5.x-1.x-dev Provides RSS feeds for comments Depends on: Comment (enabled)

Email verify 5.x-2.0 Verifies thoroughly email addresses during registration and account edition.

External Links 5.x-1.3 Adds icon next to external links on the site

Feedback 5.x-1.x-dev Provides one or more site-wide feedback pages.

Google Earth 5.x-5.x-dev Allows to post the visitors on a Google Earth map. Depends on: Statistics (enabled)

Google Analytics 5.x-1.3 Adds Google Analytics javascript tracking code to all your site's pages.

XML Sitemap 5.x-1.10 Creates an XML site map in accordance with the sitemaps.org specification.

HTML Corrector 5.x-1.x-dev Ensures all HTML in user-submitted content is valid when output on the page.

Inactive User 5.x-1.1 Automatic handling of inactive users.

Modr8 5.x-2.3 Easy, dedicated moderation of content

Meta tags 5.x-1.5 Allows users to add meta tags, eg keywords or description.

Page Title 5.x-1.1 Enhanced control over the page title (in the tag).

Quote 5.x-1.3 Allows users to quote posts or comments. Depends on: Comment (enabled)

Scheduler 5.x-1.8 This module allows nodes to be published and unpublished on specified dates.

Similar entries 5.x-1.2 Displays a block with the most similar nodes to the currently viewed one, based on the title and body fields, for sites using MySQL MyISAM tables.

Site menu 5.x-1.0 Provides a block and sitemap from categories Depends on: Taxonomy (enabled)

Sitenotes 5.x-1.0 Enables creating site notes for administrators.

Smileys 5.x-1.2-beta Replaces smileys inside posts with images. Required by: Smileys Import (enabled)

Smileys Import 5.x-1.2-beta

Subscriptions 5.x-1.9 Allows users to subscribe to nodes and taxonomy terms.

TinyMCE 5.x-1.9 The most popular WYSIWYG editor for advanced content editing.

Troll 5.x-1.1 Provides tools for community sites including users by IP address, banning IP addresses, advanced user searching, and blocking user by role.

Week 5.x-1.2 Create block containing a list of weekly archives.

Other modules that are disabled:

CCK:

Content 5.x-1.6-1 Allows administrators to define new content types. Required by: Content Copy (disabled), Fieldgroup (disabled), Node Reference (disabled), Number (disabled), Option Widgets (disabled), Text (disabled), User Reference (disabled)

Content Copy 5.x-1.6-1 Enables ability to import/export field definitions. Depends on: Content (disabled)

Fieldgroup 5.x-1.6-1 Create field groups for CCK fields. Depends on: Content (disabled)

Node Reference 5.x-1.6-1 Defines a field type for referencing one node from another. Depends on: Content (disabled)

Number 5.x-1.6-1 Defines numeric field types. Depends on: Content (disabled)

Option Widgets 5.x-1.6-1 Defines selection, check box and radio button widgets for text and numeric fields. Depends on: Content (disabled)

Text 5.x-1.6-1 Defines simple text field types. Depends on: Content (disabled)

User Reference 5.x-1.6-1 Defines a field type for referencing a user from a node. Depends on: Content (disabled)

SEO Checklist 5.x-1.3-1 A Search Engine Optimization checklist for Drupal sites.

Image:

Image 5.x-1.6 Allows uploading, resizing and viewing of images. Required by: Image Attach (disabled), Image Gallery (disabled), Image Import (disabled), Image assist (disabled)

Image Attach 5.x-1.6 Allows easy attaching of image nodes to other content types. Depends on: Image (disabled)

Image Gallery 5.x-1.6 Allows sorting and displaying of image galleries based on categories. Depends on: Image (disabled), Taxonomy (enabled)

ImageMagick Advanced Options 5.x-1.6 Adds advanced options to the ImageMagick image toolkit.

Image Import 5.x-1.6 Allows batches of images to be imported from a directory on the server. Depends on: Image (disabled)

Image assist 5.x-1.x-dev This module allows users to upload and insert inline images into posts. It automatically generates an Add image link under the textarea fields of your choice. Depends on: Image (disabled)

Views:

Views 5.x-1.6 The views module creates customized views of node lists. Required by: Views RSS (disabled), Views Theme Wizard (disabled), Views UI (disabled)

Views RSS 5.x-1.6 RSS plugin for the views feed selector argument. Depends on: Views (disabled)

Views Theme Wizard 5.x-1.6 The views theme wizard helps create stub theming for views. Depends on: Views (disabled)

Views UI 5.x-1.6 The Views UI module allows you to create and edit views. Depends on: Views (disabled)

I hate to reply to my own message, but I feel it's necessary.

I decided to try this on a test site to see if I could duplicate the problem and I did duplicate it.

If you enable comments, forums and taxonomy modules then create containers and forums (with or without data) then try to create content/forum topic then the forums listbox is there.

If you DISABLE the three modules above then re-enable them, the forums listbox in create content/ forum topic is gone.

Uninstalling via the tab and re-enabling the modules does nothing, the forums listbox is still gone when you try to create content/forum topic.

The container and forums still exist when you click on the forums menu entry. The forums listbox seems permanently removed.

Any ideas on how to fix this and keep forum content? This seems a major problem?

The problem was that the vocabulary_node_types was missing the #1 entry for forum. A better explanation is at http://drupal.org/node/198542