Seems to be a bug when using OPENGL in combination with noLoop(). I'm using
Win2k Processing 0091 Beta.

the bug described previosly here:
http://processing.org/discourse/yabb_beta/YaBB.cgi?board=SoftwareBugs;action=display;num=1115330568;start=3#3

It gives an InterruptedException:
java.lang.RuntimeException: java.lang.InterruptedException
at processing.opengl.PGraphicsGL.requestDisplay(PGraphicsGL.java:166)
at processing.core.PApplet.run(PApplet.java:951)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Unknown Source)
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at
net.java.games.jogl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:220)
at net.java.games.jogl.GLCanvas.display(GLCanvas.java:75)
at processing.opengl.PGraphicsGL.requestDisplay(PGraphicsGL.java:157)
... 2 more

working code:
//---
import processing.opengl.*;

void setup()
{
size(200, 200, OPENGL);
//noLoop();
}
void draw(){
translate(width/2,height/2,0);
rotateX(TWO_PI*10/360);
rotateY(TWO_PI*20/360);
rotateZ(TWO_PI*20/360);
box(50,50,50);
}
//---

non-working code:
//---
import processing.opengl.*;

void setup()
{
size(200, 200, OPENGL);
noLoop();
}
void draw(){
translate(width/2,height/2,0);
rotateX(TWO_PI*10/360);
rotateY(TWO_PI*20/360);
rotateZ(TWO_PI*20/360);
box(50,50,50);
}
//---

this may actually be fixed with the newer jogl that will arrive with rev 93, will have to
check.

nope, not fixed.. will have to track down what's going on. that threading
stuff is pretty nasty and tied to lots of other things..

now fixed for 0116.