Afternoon... Okay, up until about 5 days ago, everything was fine, the game ran brilliant and I loved every minute of it. But like a bat out of hell the mouse started playing around, and it has now got to the point of me nearly throwing it out of the window, into the street. It's like mouse lag but alot worse, you'll be running around and then the mouse will freeze, won't even click. Then it will be fine again, then... it'll freeze. It's only for like a couple of seconds, but it happens every 5-10 seconds. This is such a pain in the arse in multiplayer, I'm being owned just because my mouse isn't doing its thing. I have a Logitch MX Revolution, that's always fully charged. I have tried the connection dongle in all of my ports, including having it directly infront of the mouse itself. I've updated drivers for the mouse and used the setpoint software, all with no luck. I've also adjusted mouse sensitivity and turned off 'smooth mouse' with no luck. Remember this ONLY happends in CoD4... Any suggestions to try, other than re-installing? And if I have to re-install, where is the information kept on your rank and custom class', and single player progress kept, because I can't be loosing that... Many thanks in advance for any help! Sam.