RTM: Sorry. I'm new to the world of Autodesk and thought this was something I would have found in the help or one of the menus, like view toolbars, or options toolbars where most Windows programs place them.
I only later thought to consult the manual. It works:
Control the Display of Toolbars
To display or hide toolbars, right-click any toolbar to display a list of toolbars. A check mark next to a toolbar name indicates that it is displayed. Click a toolbar name in the list to display or clear the check mark.