Windows 7: Direct X components "Not Available" / Arma II Display Adapter Error.

First, here is the basic information about my 2009 MacBook Pro:
OS X 10.8.2 (12C60)
Processor: 2.26 GHz Intel Core 2 Duo
Memory: 4 GB 1067 MHz DDR3
Graphics: NVIDIA GeForce 9400M 256 MB
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I have used boot camp to create a Windows Partition on my Mac and have installed Windows 7. The main reason I did so was for gaming purposes. When running Windows, when I attempt to run a game (Arma II), I get an error regarding my Display Adapter. Using Device Manager I made sure that the Display Adapter software had been updated, so I'm not sure that's the issue. The main problem is that Direct X Acceleration and Direct X 3D are "Not Available." I'm trying to find some way to enable the Direct X components and I'm not sure what to do. Is this a problem with the graphics card?

Also, I still have roughly 200 free GB on my Windows partition, in case anyone was wondering.

I'm really keen on running games on my Mac as opposed to purchasing a separate PC and if anyone could help me with this problem it would be much appreciated.

Thanks!

Check minimum requirements for the game... perhaps your graphics card does not even meet the requirements, hence, why you are having issues?

Most netbooks/laptops graphics cards are nothing more than for you to do homework and browse the internet.