Black and White 2 problem

I thought i wanted to try out Black and White 2 the other day.
Now this is my computer specifications:

MSI motherboard SiS 661FX 661FM2 series.
Intel Pentium 4 3.0GHz
GeForce 6600GT PCI 128MB DDR
1024MB DDR RAM

And it’s like, i can’t run the game @ 800x600 32BIT, medium or low graphic settings!

Does anybody know what is wrong ? :s

Thanks, acr.