The Find Lost Toolbars command is used to move all of the toolbars to a visible location on the screen. If your CAD program moves the toolbars to a location that cannot be seen, the toolbars are made unusable. Moving all of the toolbars is the simplest solution to this problem.
To find lost toolbars, go to
Ribbon: DM HVAC→Utilities→ 
→Find Lost Toolbars
Pulldown Menu: DM HVAC→Utilities→Find Lost Toolbars
Once this command is entered, all of the toolbars will be displayed. Move any toolbars you want visible to the correct location. Close any toolbars that you do not use.