Jitspoe- This occurs with windows 7 more then it does with windows xp. It use to happen to me as well, the game would automatically crash with the same message, and it would be random.
Umm, Averio; delete the game fully(make sure everything is deleted), then download the game to a new folder or some other place(so like if the default location is "C:/Games/Paintball2" then download it to C:/Documents/Paintball or C:/Paintball2 , then check if the game works.
If that does not work, averio does this happen as soon as you start Dp? Or when you try to join a server? Do you have the password to "auto-logging"? Can you try to run DP when you are not connceted to the Internet, does it give you the same result?