Aspire one 722 graphics driver installation boots and freezes to blank screen?

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http://askubuntu.com – Acer Aspire 722 - Dual boot with Ubuntu 12.04 inside windows 7. As I have updated my Ubuntu 12.04 and installed the restricted hardware (graphics) drivers, the system boots and freezes to a blank screen. A hard reset is the only option to reboot. (HowTos)