Seeing some weirdness here depending on parameters given to size()...
 
Compare #1:

     void setup() {
        println("** START: " + millis());
        size(200,200,P2D); // renderer parameter
      }

      void draw() {
      }

typical output:
** START: 81
** START: 102

with #2:

      void setup() {
        println("** START: " + millis());
        size(200,200); // no additional parameter
      }

      void draw() {
      }


typical output:
** START: 92

I'm using 1.2.1 on OSX 10.5.8

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I just noticed I mis-read the title of this forum as "Core/Library Questions" -- is there a forum for Language/Core issues?  This is my first time on the new forum, I was using the old one for years.