AMD Radeon HD 7470M proprietary driver not working on ubuntu 12.04lts

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http://askubuntu.com – I am using 64-bit 12.04LTS. I have manually tried to install AMD Radeon HD 7470M proprietary drivers from AMD official site. But, after installing, when I tried to launch Catalyst Control Center, a message is shown like this: "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 aticonfig." (HowTos)