Games hang using PunkBuster Online Gaming Servers
The information in this article applies to the following configurations:
RADEON 9500 or Higher
PunkBuster Online Gaming Servers
Windows XP
Random hanging has been observed with certain games on certain systems when using the PunkBuster server.
To resolve this issue, please follow these instructions:
Download and install CATALYST 4.12 Beta Release which resolves the majority of cases of this hang.
Note: If you have Catalyst Control Center previously installed, you will need to reinstall it . You may download Catalyst Control Center if required.
http://www.ati.com/support/infobase/4701.html