Unable to start clod - blackscreen launcher crash

[Fatman]

I have exactly the same problem. I bought the game (steam version) two days ago, and I was able to play only once (no very smoothly, but playable). But the next time I executed the game, this problem happened.
I've tried to reinstall the game, download it again, reinstall distributables, even reinstall windows 7, but all was useless.

My specifications

Windows 7 Ultimate x64

Inter Core i5 760

Nvidia 9800 GTX+ 512 Mb(I know that it's below the minimal, but I played with it, at least once)

4 Gb Ram

PD: I'm not english speaker, sorry for any mistype.

[Fatman]

Solved! After a little investigation, I unistalled the Windows Upadte KB2670838. Everything seems to be fine now.

[Steve Zodiac]

Has anyone found a solution other than the things mentioned? Mine will not launch either and runs for about 4 seconds to the first black screen, then just reverts back to nothing? I've run out of things to try.