* Some old struct Preferences fields are now ignored by SetPrefs (for
  example FontHeight).  SetPrefs also stops listening to the pointer
  fields as soon as a new-style pointer is passed to Intuition (new-style
  pointers can be taller or deeper).

* Preferences ViewX/YOffset only applies to the default mode.  You
  cannot use these fields to move the position of all modes.

* The Preferences LACEWB bit is not necessarily correct when Workbench
  is in a new display mode (akin to GetScreenData()).