If you look at the top of the window manager, you'll see the Icon Bar version is "unknown," which means the file is either missing or broken. Look in your EverQuest II\UI\DarqUI_v3 folder for a file named darqui_custom_iconbar.xml. If you see it, delete it and then check for updates with the utility again. The utility should offer to download a new copy of the Icon Bar. After you've done that, look again in the DarqUI_v3 folder and make sure darqui_custom_iconbar.xml appears.