Ok-- I just installed New Vegas and now I'm having a major problem. When I open the game for the first time, it loads fine and I'm happy as a clam. But then when I click "new game," it starts to play the intro (I can see the moon in the video) but then blacks out and crashes to desktop. I searched the forum but I don't notice anything that could help me. Does anyone have any idea how to fix this? I'm reinstalling fresh right now so I'll see if that helps. 
EDIT: It didn't help. Exact same problem.
EDIT: It didn't help. Exact same problem.