Are you logged into Xbox Live? I don't know if that's a necessity or just being connected is enough, but yeah when you start the game, you should get a prompt asking you to download an update that's 4MB. If you haven't by now, you might want to try clearing your cache (game and xbox's) and try again, or check to make sure you didn't accidentally do it already (or someone else, does anyone else play the game?)
No. My wife and I share a gold acount thats always on, but she
never plays NV. I know how to clear the game cache but not the 360's. Thanks for the info.
Gonna sign on now and check again...