Tried this?
KillPuppy over at TF posted this. thought id share with you all. let me know if it works....
From
http://arch1tect.wordpress.com/2009/04/29/...-fix-windows-7/
Currently Punkbuster (the anti-cheat software built into many multiplayer games) has major compatibility issues with Windows 7. Various fixes have been discovered for x32 versions of the Beta OS, but none (until now) for x64. Punkbuster themselves have refused to support Windows 7 until RTM, so forgive the “hackiness” of the fix, but it works.
The Fix
In both C:\Windows\SYSWOW64 and C:\Windows\System32
Open PnkBstrA.exe and PnkBstrB.exe’s properties and enable Vista Compatibility Mode, as well as “Run as administrator”. Save.
Right click on the desktop and create a new text file, then copy paste the following:
Quote:
:start
sc config PnkBstrA type= own type= interact
sc config PnkBstrB type= own type= interact
timeout 60
goto start
Save the text file as punkbuster.bat and run it (as an administrator) before joining a server.
Problem “resolved”.