In
this new Preferences dialog, you'll see mostly values
or True/False indicators. What we're looking for here,
is the preference that controls the way the Timeline and
Docking windows are laid out. In the bottom of the Internal
Preferences, you'll notice a dialog box. Type the
word "DOCK" into this box. This will limit the search
to any parameter containing the word "DOCK."
There
should only be one field apparent after you enter the
word "DOCK."