System crashes on very simple code

Have you treid to check if the passed child is notnull?

Also create the boxes in the simplegameinit, as some stuff might need to have the Renderer data (like a single color material , dunno)

Never had similar issues with other openGL-applications? And does the problem occur every

time at the same place…? Never had the problem with the jmeTest-classes?

e.g. The computer at my officeI has a similar problem. After some time (sometimes seconds sometimes minutes) the whole system freezes and all I can do is to turn it off and on again…There it is a hardware-failure…(but I can't go to my boss and say:"Hey,…I can't use openGL!" as we are doing only swt (sad but true))

Your code seems to run fine here (Ubuntu 10.4 64bit, Sun JRE 1.6.0_20, NVidia Drivers 195.36.15, JME 2.0.1 + LWJGL 2.4.2). I have tested it using this main:

public static void main(String[] args) {
    Game game = new Game();

640x480, 24bpp, no fullscreen, LWJGL.