Not sure if anyone can help me, and am not sure if this is the right forum to post this in or not. I just recently got COD 4. Love the game. Now here is my issue, when I go online to play, I keep getting kicked out of rooms due to an error with the Punkbuster "handshake" or something like that, after about a minute of being in a room. I figured out it has to do with my ActiveArmor Firewall program that came installed with my new computer. When I disable the firewall I can play the game with no problems. I've tried to go into the firewall settings to set it to allow the Punkbuster to work with it, however it never seems to save my settings when I change it from "Deny" to "Allow" and then click save. Anyone else have this issue? Does anyone know how to modify the Active Armor firewall to correct this issue? Any info or suggestions would be greatly appreciated.