 - full screen doesn't work on linux (with Ion window manager)
	- need to try with other window managers

   Reproduction Steps:
     1. Hit escape key.
     2. Sit in stunned silence as nothing happens.

 - ctrl-clicking causes stack traces to be printed out
  Exception: nil does not respond to 'at'

  Coroutine_0x84fcb50 stack trace
  ------------------------------
  nil at                              Mouse line 71
  Mouse stateMessage                  View line 331
  Background mouse                    View line 356
  Background directMouse              Screen line 189
  Screen mouse                        [GLUT] line 0

 - ctrl-clicking a number of times causes main.io to exit

 - right-click dragging on the box and moving quickly away causes line
   drawing to not happen
