title: Jogl display not showing up
body: <p>I'm trying to find an openGL library that works using NetBeans on IBM or Mac for a 3D graphics course I teach.  JOGL seemed a good choice.  I tried loading the JGears demo.  Though the code appears to run (all the Graphics2D components display), the gears are invisible.  As far as I can tell, the Animator isn't even calling the display method.</p>