How to Install AMD 7670m drivers on ubuntu 12.04

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http://askubuntu.com – I bought HP 2016tx. I want to install AMD 7670m graphics card drivers. I tried installing amd-driver-installer-12-4-x86.x86_64.run. But when I run aticonfig, I get an error that "No supported drivers are detected". What is the correct driver to be installed and how it needs to be installed. (HowTos)