I get an occasional freeze.

everything running fine and then the screen suddenly freezes for about 5 seconds and then life goes on again like normal. Happens about 3-4 times from starting the demo till finishing it.

1800xp
radeon 9800
cats 3.5 ati drivers
msik7t turbo mobo
hercules fortissimo 2 soundcard
348 mb pc 133 ram
windows xp