Open the key-in dialog (Utilities > Key-in)
Enter “DIALOG TASKNAVIGATION TOGGLE”
This file is located in the same folder as the UPF
A new <user>.docking.xml file will be created, from MS_DOCKINGPREFSEED, to replace the renamed one.
Note: This will reset all dialog positions as well as all docking and dialog display settings. It is recommended to try the other options before attempting this option.