With the release WordPress 2.8.2 a series of PluginSites, could not be accessed by administrators blogs.
For example, those who use the plugin Deluxe AdSendeWhen they wanted to change something in settings were greeted by the message "You do not have sufficient permissions to access this page."
Fix: You do not have sufficient permission to access this page.
1. Go to Dashboard -> Plugins -> Disable Adsense-Deluxe plugin.
2. Go to the plugins editor, and file AdSense-Deluxe.php, Search and replace admin_head cu admin_menu. (Click on image below)
3. Save Changes (Update File) And reactivate Adsense Deluxe plugin.
Now going to be greeted by the message: "You do not have sufficient permission to access this page" when you want to make changes in the plugin settings.Permanent closure / disable Windows Vista Sidebar »»
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IT Tips - Windows, Mac OS X, Linux & Mobile - AdSense Deluxe & WP Plugins - You do not have sufficient permissions to access this page. [WordPress 2.8.2 +]