Using the example from the PGraphics help, but with OPENGL instead of P3D:

PGraphics pg;

void setup() {
 size(100, 100);
 pg = createGraphics(80, 80, OPENGL);
}

void draw() {
 pg.beginDraw();
 pg.background(102);
 pg.stroke(255);
 pg.line(40, 40, mouseX, mouseY);
 pg.endDraw();
 image(pg, 10, 10);
}

I get the output as posted below.

I'm using OSX 10.5.8, Macbook pro 3.06GHz 9400/9600 graphics. I've tried this with both graphics cards. The first frame is constructed and displayed correctly so it seems. I guess the exception occurs after that.

Should I file a bug report or am I missing something?

...

Exception in thread "Animation Thread" java.lang.RuntimeException: Image width and height cannot be larger than 0 with your graphics card.
     at processing.opengl.PGraphicsOpenGL$ImageCache.rebind(PGraphicsOpenGL.java:836)
     at processing.opengl.PGraphicsOpenGL.bindTexture(PGraphicsOpenGL.java:767)
     at processing.opengl.PGraphicsOpenGL.renderTriangles(PGraphicsOpenGL.java:690)
     at processing.core.PGraphics3D.endShape(PGraphics3D.java:627)
     at processing.core.PGraphics.endShape(PGraphics.java:1153)
     at processing.core.PGraphics.imageImpl(PGraphics.java:2293)
     at processing.core.PGraphics.image(PGraphics.java:2182)
     at processing.core.PApplet.image(PApplet.java:7124)
     at wavedisplay$WaveformRenderer.draw(wavedisplay.java:244)
     at wavedisplay.draw(wavedisplay.java:99)
     at processing.core.PApplet.handleDraw(PApplet.java:1423)
     at processing.core.PApplet.run(PApplet.java:1328)
     at java.lang.Thread.run(Thread.java:613)