[ubuntu] Problems installing ati/amd driver in 12.04

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http://ubuntuforums.org – Hi there! The ati graphics-card i have installet in my laptop is HD 5470. I have installed the drivers both from the repositories AND from System Settings -> Additional Drivers -> ATI/AMD proprietary FGLRX graphics driver. I can locate the Catalyst Control Center, but i cannot open it. I get an error saying: "There was a problem initializing Catalyst Control Center Linux edition. It could be caused by the following. No AMD graphics driver is installed, or the AMD driver is not functioning properly. Please install the AMD driver appropriate for you AMD hardware, or configure using (Hardware)