I believe that the senders or Cursor xxx showWhile: .. are using the wrong level of abstraction, by directly referring to the Cursor class reference and more important, that all visual related cues must go thru UIManager . If we take this approach further, we see there's 1) no need to have a special Cursor class. 2) We can remove the Hardware cursors and the software cursor distinction, so any Form can be used as a "cursor" image. Leading to an understandable implementation of the drawing behind HandMorph ( if not convinced try out " Cursor wait show" , and see that nothing happens) Solution: *Refactor HandMorph, removing the distinction between hardware and software cursor. *Make the Cursor senders, to use the proper level of abstraction ( not directly using the hardware cursor, such as Cursor wait showWhile:[..]) *Remove Cursor. I will work on this, and once create an issue once working. Saludos, Fernando