I installed the game and even though it said it was loading the latest directx I had to select run in Directx 9 mode on my machine with 32 bit Vista Ultimate.
It should support DX11 because it uses the new API. Make sure you have DX11 installed.
**Edit** Hey it looks like I'm getting ahead of myself. I am able to launch the game in DX11 mode but not enable the enhanced features, I'm using Windows 7 if it matters. Looking into it now....
It can be in dx11 mode just you won't get any of the special DX11 features. It will also cause the game to randomly pause. If you run it in DX9 mode you won't notice much difference except for a few cool warp effects and such.
I got a big disappointment myself. I got an Alienware laptop, duel Nvidia's, the quad processor, & Win 7. I tried running in directx 11 and it wouldn't work right. Kept freezing on the startup cinemas. Have been running it in directx 7 though with no problems. A fix soon hopefully.
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