Hum.. Does WebGL stuff otherwise work for you? For instance, does this work? http://threejs.org/examples/webgl_buffergeometry_particles.h... And what OS and browser are you using?

Yes, that link works at 11fps and I'm using Firefox 21

Do you see the cube loading in the beginning? Have you tried restarting your browser? I have seen some random crashes a very few times, where I've had to do that, some times because there has been too many tabs open. There's still a ways to go before WebGL gaming is 100% stable.. but that's also some of the point of doing this project :)

I finally did get it running. Thanks!