DirectX 10 here.
And i wished all my games ran as smoothly as this one.
Only crash i ever had was on a bug with Mirabela wich was promptly adressed on the patches.
Sorry i can't give any other assistance besides letting you know the directx issue shouldn't be relevant.
You should post your specs. Are you on Vista? Wich version? Wich graphic card? How much RAM. If you're having problems with other games, it's usually graphic card related.
If you want to give it a try, my definitions are 1440x900, anisotropic filtering 2x, no antialiasing, default refresh rate. Leave the rest of the options as you prefer them. If it doesn't work, then try setting them to a minimum.
Also, try emailing this problem to your graphic card manufacturer, they might have a better costumer assistance and be aware of any incompatibilities with those settings. Or google for similar issues with that card.
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