Mark Fox send words that a new version of RadeonTweaker is out.

RadeonTweaker is a advanced option editing tool for ATI´s line of
Radeon-Based video cards. It will allow you to adjust options you otherwise would have to add to the Window´s Registry by hand...a daunting task for the uninitiated. RadeonTweaker also provides information about what a Tweak will do to your system. The documentation will be improved as time goes on.

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