If the Outlook Add-in is installed and the pencil icon is showing up in the task tray, but the Add-in menus and main view are not appearing in Outlook, you may have multiple instances of Outlook open. The Outlook Add-in will only display in the first instance that was opened.
You can check if you have multiple instances of Outlook open in a couple of different ways. The easiest check is to see if you have multiple Outlook windows on your Taskbar. If so, close the duplicates and retain just the window that displays the EIOBoard Outlook Add-in.
If you only see one window but still have this issue, you may have “Hide when minimized” checked on your task tray icon. Right-click on the Outlook icon in the task tray (by the clock) and uncheck “Hide when minimized”. This will place all instances of Outlook back into the Taskbar. Again, close the duplicates and only retain the first instance, which should be displaying the EIOBoard Outlook Add-in. When you minimize Outlook now, it should remain in the Taskbar instead of disappearing.