When I use the custom function FN SetCPixel  (Not the toolbox call, but the
very quick  one that uses an array of pixel row addresses calculated at the
startup to poke values directly into the PixMap) is it necessary to leave the
PixMap that I'm using locked? Throughout the entire length of the program?
Will the row addresses change, and will I get garbage? And will it then crash?

-Nate