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I am running a number of plugins however I have checked another install and when I update to 2.5.4 my Forums tab disappears in admin??

Plugins I am running below…. on 3.9.1 wordpress

Admin Menu Editor Pro
Deactivate | Edit | Settings | License

Lets you directly edit the WordPress admin menu. You can re-order, hide or rename existing menus, add custom menus and more.
Version 1.93 | By Janis Elsts | Visit plugin site | Check for updates
Select Akismet Akismet
Settings | Deactivate | Edit

Used by millions, Akismet is quite possibly the best way in the world to protect your blog from comment and trackback spam. It keeps your site protected from spam even while you sleep. To get started: 1) Click the “Activate” link to the left of this description, 2) Sign up for an Akismet API key, and 3) Go to your Akismet configuration page, and save your API key.
Version 3.0.0 | By Automattic | Visit plugin site
Select bbPress bbPress
Activate | Edit | Delete

bbPress is forum software with a twist from the creators of WordPress.
Version 2.5.4 | By The bbPress Community | Visit plugin site
There is a new version of bbPress available. View version 2.5.4 details or update now.
Select BuddyPress BuddyPress
Deactivate | Edit | Settings | About

Social networking in a box. Build a social network for your company, school, sports team or niche community all based on the power and flexibility of WordPress.
Version 2.0.1 | By The BuddyPress Community | Visit plugin site
Select Emma & Zoho Emma & Zoho
Deactivate | Edit

Synchronize gravity form data into emma and zoho through API
Version 1.0 | By Stephin Nadar
Select Emma & Zoho Update or Add Emma & Zoho Update or Add
Deactivate | Edit

Send gravity form data into emma and zoho through API
Version 1.0 | By Stephin Nadar
Select Goals Goals
Deactivate | Edit

Nice Goal Plugin.
Version 1.0 | By WP-Lokal | Visit plugin site
Select Gravity Forms Gravity Forms
Settings | Deactivate | Edit

Easily create web forms and manage form entries within the WordPress admin.
Version 1.8.8 | By rocketgenius | Visit plugin site
Select Import Users from CSV Import Users from CSV
Deactivate | Edit

Import Users data and metadata from a csv file.
Version 1.0.0 | By Ulrich Sossou | Visit plugin site
Select Multi Plugin Installer Multi Plugin Installer
Deactivate | Edit

This plugin can install multi plugins at once click
Version 1.1.0 | By Nishant Jain, rahulbrilliant2004, tikendramaitry | Visit plugin site
Select Post Expirator Post Expirator
Deactivate | Edit | Settings

Allows you to add an expiration date (minute) to posts which you can configure to either delete the post, change it to a draft, or update the post categories at expiration time.
Version 2.1.3 | By Aaron Axelsen | Visit plugin site
Select RSS Shortcode RSS Shortcode
Deactivate | Edit

Makes it easy to display an RSS feed on a page
Version 0.2 | By Joost de Valk | Visit plugin site
Select Splash Plugin Splash Plugin
Deactivate | Edit

“Splash Plugin” is a Word Press plugin that allows you to display static and dynamic tabs on the left and/or right side of your website. They are non-intrusive and a fun way get attention. You have control on how the tabs will look using our built-in tools or our pre-designed tabs.
Version 4.0 | By SplashPlugin.com | Visit plugin site
Select User Avatar User Avatar
Deactivate | Edit

Allows users to associate photos with their accounts by accessing their “Your Profile” page that default as Gravatar or WordPress Default image (from Discussion Page).
Version 1.4.11 | By Enej Bajgoric / Gagan Sandhu / CTLT DEV | Visit plugin site
Select User Role Editor User Role Editor
Settings | Deactivate | Edit

Change/add/delete WordPress user roles and capabilities.
Version 4.14 | By Vladimir Garagulya | Visit plugin site | Changelog
There is a new version of User Role Editor available. View version 4.14.1 details or update now.
Select White Label CMS White Label CMS
Deactivate | Edit

A plugin that allows you to brand wordpress CMS as your own
Version 1.5.2 | By http://www.videousermanuals.com | Visit plugin site
Select WP101 WP101
Deactivate | Edit

WordPress tutorial videos, delivered directly in the WordPress dashboard.
Version 2.1.1 | By WP101Plugin.com
Select WP Project Manager – Frontend WP Project Manager – Frontend
Deactivate | Edit

Frontend functionality for WP Project Manager
Version 1.2.1 | By Tareq Hasan | Visit plugin site
Select WP Project Manager – Sub Task WP Project Manager – Sub Task
Deactivate | Edit

Time tracker add-on for WP Project Manager
Version 0.1 | By weDevs | Visit plugin site
Select WP Project Manager – Time Trakcer WP Project Manager – Time Trakcer
Deactivate | Edit

Time tracker add-on for WP Project Manager
Version 0.1 | By weDevs | Visit plugin site
Select WP Project Manager PRO WP Project Manager PRO
Deactivate | Edit

A WordPress Project Management plugin. Simply it does everything and it was never been easier with WordPress.
Version 0.5.3 | By Tareq Hasan | Visit plugin site
Select wpsc Support Tickets wpsc Support Tickets
Deactivate | Edit

An open source help desk and support ticket system for WordPress using jQuery. Easy to use for both users & admins.
Version 4.5.1 | By wpStoreCart, LLC | Visit plugin site
There is a new version of wpsc Support Tickets available. View version 4.7.2 details or update now.
Select wpsc Support Tickets PRO wpsc Support Tickets PRO
Deactivate | Edit

A professional add-on for the wpsc-Support-Tickets system for WordPress. Adds many professional features.
Version 3.0.3 | By wpStoreCart, LLC | Visit plugin site