Hm, just noticed I had SSE optimizations on in vc... Anyone with a non-p3 (or better) cpu able to run the demo?
I can't test, but I am certain that Athlon CPU's did not support SSE instructions until the Palomino ( which came after the Thunderbirds ) so it's a safe bet that you will have to disable SSE in order to make it work on the majority of Sub 1.5Ghz CPU's ( of which there are many still around. )