I uploaded the game to a friend's host. I apologize for making you wait this long.

I couldn't figure it out why it doesn't work on vista.
I'm using directx 9.0c but i didn't test it on vista.

I could probably because of the vertex codes without using shaders or because of fullscreen, i don't know...

I'll be glad if you send any error messages you've got to me .

Thanks.