I took a chance on Dirt even though it says Windows 7 isn't supported... I tried the xml fix, didn't work, tried exiting fraps, that didn't work at first, then I tried launching from within steam and that somehow worked... so I got into the game, I was able to create a profile, then I tried increasing the graphic settings, which forced the game to re-launch, but for some reason it only increased the resolution to 1024x768 instead of 1920x1200 like I asked. Then I tried increasing the resolution again and this time I manually changed the aspect ratio to 1.6, but after that the game doesn't boot at all. So I guess the moral of the story is, don't bother trying to get Dirt to work. I don't suppose there's any chance that Steam would give me a refund, is there?