Hi!
I have on a the same machine both W2000 and W98.
When I run the demo in W2000 (800*600 16 bit colors) it is quite slow.
However, when I run it on Win98 (800*600 16 bit colors) it is ok.
I can't recall wether I have upgraded the DirectX
version on Win98 or not. The HW is the same so either the version of DirectX or diffecrence in OS is responsible ...
Teddy