Das Einzige, was du deinstallieren solltest, wäre das ControlPanel, der Treiber an sich ist egal.
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REMINDERS:
1- If you have the normal ATI drivers, uninstall the ATI Control Panel BEFORE
upgrading to these drivers, the drivers already have the CP integrated
and another CP may cause conflicts or other problems.
2- There is no need to uninstall ANY previous drivers (ATI or OMEGA) when
installing these, they will override any previous settings.
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