Well, if you havent noticed- there is a "tunnel vision" type feel to the game and it can make you horribly motion sick. There is a fix to this and that horrible HDR bloom:

1) Go to My Documents>BFBC2
2) In there open Settings.ini (NOT Gamesettigns)
3) Find the setting called "bloom" and replace it so it says
Bloom=false
4) The last setting (the most important) is fov (frame of view). I recommend not going over 85 as it can horribly skew the image.
fov=75

This will help with the listed problems as well as prevent someone walking up to your side and knifing you, leaving you saying wtf since you never saw a thing.

There is a "hijack chain" going arround based off a message for free games from nvidia.

Basically you receive a message to sign in and claim free games for steam community members courtesy of nvidia, and once you sign in it hijacks your account and sends the same message to all your friends and snags more.
I wil not post the link but it includes "nvidia" and ends in ".tk" (don't want to inadvertantly send one of you to your demise).

DO NOT CLICK THE LINK, DO NOT SIGN IN. Contact your friend about this message since they may not realize what has happened.

Also, for reasons like this we urge you not to use the "save my payment details" feature of steam, because once hijacked that individual can send endless games purchases to other accounts at your expense.

Warn your Friends!