When attempting to access the tab at "Console Access Settings" | "Super User Management" a browser error is received:
"An unexpected error occurred while attempting to complete your last operation and any unsaved settings may have been lost".
To solve this situation open the Desktop Authority Setup Tool (It can be located in the Windows Start Menu, under Quest Program Group), connect to the database and select the "Super User Management" tab
Once in the Super User section, compare the users list with Active Directory users and once the missing account is detected, select it from the list and click "Remove".
Close the Desktop Authority Setup Tool, the "Super User Management" section should be available again.