Ok, so I bought Dead Money via Steam, which is where I bought my Fallout: New Vegas and whenever I try and play the game, I get to the launcher but as soon as I press "Play" Steam gives me the message Could not launch the game, error code 77. I try'd to launch the game directly, and the game crashed without giving me a message. I would really like some help as I spent $10.00 for the DLC and now I can't play.
On a side note, Steam was acting funny when I try'd to install it and it kept suspending the download. And it also said "No Steam servers available, please try again in a few minutes." Didn't work after two hours.