I had the same problem as many people here. Purchased WoG, installed fine, but first time I launched the game it instantly blue screened. Every time thereafter, no matter what I tried, the game would immediately crash, giving me an error message. After researching the problem, I uninstalled and reinstalled the game. It worked perfectly, no hassles, no crashes, no blue screens, worked flawlessly. I really cannot explain what happened, but just reinstalling the game fixed it.