Two days ago i installed Windows 7 Ultimate x64 OS.I buyed Cod 4 yesterday.When i try to enter in the game screen became black and then some window pop out and says "Call of duty 4 Modern Warfare stoped working",that's a first problem,second problem is with mp,i can enter in mp all good but when i try to join to some server it says "you are permanently banned from this server" or "you are kicked".Please help.
1) Update video card drivers. The newest driver always have fixes to certain games with certain configurations. Make sure to always keep the drivers up-to-date.
2) Uninstall then reinstall the game. Chances are if the gameis failing to load half the time, a few of the files were corrupted during the install.
As far as the mutiplayer issue, I'm not sure. If it is saying to are banned, contact the support desk. Your serial for the game may have been stolen... assuming this is a legit copy that you got.
Try restarting your router so it assigns you a new router number to see if it unbugs and reinstall your video drivers to see it fixes the black screen problem.
For your multiplayer issue:
The "you are banned" or "you have been kicked" can result from a corrupt install of the Punkbuster software, which is installed by default. Also, as Onyxaj said, contact support and make sure you are not on the global hardware ban list.
You also may have too high of a ping to join specific games on the server.
Best of luck.
~V
Agreed, Uninstall Punkbuster and Download your correct version here PunkBuster Online Countermeasures
Single Player issue, have you tried "Run as Administrator"? I recall this being an issue, way back when...
Yes. Hard Drive Space: 470 GB
OS: Windows 7 Ultimate 64-bit
Processor: AMD Athlon(tm) II 250 Processor 3.00 GHz
Video Card: ATI Radeon HD 3800 Series
RAM Memory : 2.00 GB
Do you have all the patches installed?
Dont you have to go thru Steam to play online?
Also is game brand new or used.
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