I had the same problem when I tried to watch Nomak's film about the overshoot. everything went fine until :53 seconds into the film when he fires - totally locked up. I had to Ctrl-Alt-Del to restart the computer because verything else was frozen.
Of course not being the brightest bulb in the box (as well as wanting to see the film...) I tried it again a 2nd time - the exact same thing happened.
On the 3rd try - wait! Do you really think I'd be so dumb as to try it again after what happened?
Well, I did, and it all locked up again. There were no further attempts to try the film or the film viewer after that. Is this related to 2.02? I never had it happen before, but then again I never tried to watch this film before either.