Codemaster's bundle games problems.

So, after purchasing the latest humble codemaster bundle, i firstly installed DiRt Showdown which worked flawlessly. I then went for DiRt 3, which is the one i'm mostly interested in.

After installing Games For Windows Live and all that jazz, i launched the game, only to see the splash screen, followed by a black screen, and back to the Steam UI. Reinstalling GFWL as an admin, uninstalling and reinstalling it like 3 times didn't seem to work, neither did checking the game cache.

Funnily enough, after that frustration, i tried running Operation Flashpoint 2: Dragon Rising, with the hopes of launching it without an issue, just like Showdown..... Nope, same issue as above: The game "launches", and i even get to see the black with wite outline cursor for about a second, before it crashes back to desktop.

I've been reading through several forums and solutions regarding Dirt 3, and so far none of them have worked. I ran GTA IV, just to make sure GFWL was working, and indeed it does, it actually registered Dirt 3 as a part of my collection.

My apologies for the frustration, if anyone has any kind of solution to these problems (be it a separate or the same problem) then i'm all ears. I'm contacting the Humble Bundle support too, but hopefully i'll be able to fix it.