[Markk_]

Alright so I need some help with Cod 4, I can play singleplayer fine and everything, but everytime I go to play multiplayer, I click on the icon and a pop up comes up saying ' iw3mp.exe is not responding '. I've tried reinstalling the game and everything but idk.... Help?

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This is normally associated with either driver issues (sound) or microphone settings. Updating your sound drivers may help. Also, if you don't have a mic to use with the game, try disabling voice options within the game.

[starjax]

This is normally associated with either driver issues (sound) or microphone settings. Updating your sound drivers may help. Also, if you don't have a mic to use with the game, try disabling voice options within the game.

[Markk_]

Righto thanks bro.

[Markk_]

I cannot update my soundcard any further, and I cannot access the voice options in the game as I have to do it throught singleplayer because Multiplayer won't open up.

[spooke]

I had that problem after I got to level 55. After a scrim one night myself and another clan mate went on a server to check on some glitching spots our opponents used. After doing this my profile went down the tube with that message coming up. The only way I was able to get around it was to uninstall and reinstall COD4. Try doing that and see how you go.
spooke