Formatting Toolbar missing, Outlook 2000

[WmHBlair]

The Formatting Toolbar has disappeared from my Outlook 2000. It is _not_ the case that it is simply not being displayed. Instead, it's not there to display. By that I mean that it's not even available in the context menu to be selected (checked) to display. I can check all the toolbars that _are_ listed, and they display as they should (and go away if I uncheck them). In the View | Toolbars | Customize | Options tab, the checkbox that reads "Standard and Formatting toolbars share one row" is unchecked, and cannot even be checked; if I attempt to do so, the mouse click is simply ignored.