Hello! I have a question.... Can I run with Nvidia 8800 XP and Vista, by that i mean does that GPU support DirectX 9.0c and DirectX10 or only DirectX10.

I think this is probably the 10th "DX10 on XP/Vista" question I've seen (and replied to) over the course of two days. Someone should do an article on all this. :D

From what I've learned, DX10 requires Vista, thus will not work with XP. However, Vista is fine with both DX9 and DX10. Meaning, if you have a DX10 graphics card, then you can handle DX9 as well. So you could still use the card with XP, if you want.