A set of custom tweaks to the WordPress Admin Bar that was introduced in WP 3.1. Since version 3.3.5 of this plugin, it is only compatible with WP 3.3
You can reset the settings for WordPress Admin Bar Improved by simply deactivation and then re-activating the plugin through the Plugin Admin interface.
In your WordPress admin dashboard, click the Settings -> WPABI menu item. (Taking suggestions for a better menu name.)
In the admin area of your site, click "Menus" under the "Appearance" menu. Create a new menu named
WPABI or something like that. Add whatever menu items you want to it, and save the menu. In the box titled "Theme Locations" on the "Menus" screen, select the menu you created in the
Admin Bar Improved dropdown select list, and hit save. After that, your menu items will appear in your admin bar for both logged in and logged out users.!
Do you have WP 3.3 installed? Have you opted to NOT show the admin bar within your user profile settings? Is jQuery loading properly? Did you try to hover over the top center of your site to see if the Show/Hide button appears?