Technical problems and solutions!!! (all problems and errors are stored here)

[Koden]

I just bought the download version of the game and my activation code worked fine, but I can't get it to run.. I read through all of these posts and found several other people receiving the same error, but because they had old machines, but mine should definitely be able to handle this game.. Any help would be really appreciated! I just tried running the demo instead and received the exact same error.

Error message:

.\.BMRender\rmode.cpp(1583): DirectX call failed: -1, -1,D3DERR_INVALIDCALL (The method call is invalid. For example, a method's parameter may not be a valid pointer)

My computer:

Windows Vista Home Premium
AMD Phenom 9500 - quad core 2200mhz
3 gig RAM
DirectX 9c (also tried 10)
ATI Radeon HD 3650 - 1 gig built in memory