I dont have a clue why people have such issues with this.I have been using AMD since 2002 with out any issues that haven't been caused by me.
I just upgraded from my 6950's to 7950's,used the AMD uninstall utility,restarted,installed the 7950 drivers and all works fine.CCC works fine and opens everytime.Even Crossfire works great.
I have never,will never and have never needed to use any driver cleaner utility.
I even went so far as to uninstall an AMD card,install an Nvidia card(which only lasted 2 hours)uninstall the nvidia and install a new AMD card without any driver cleaner utility,just the add/remove utilities.No issues whatsoever
I find that people overcomplicate things just cause others say you need to do it.
Like they say:sometimes the simplest answer is the right answer.
AMD Phenom II 1100t @4.0Ghz <Asus sabertooth 990fx<2x Gigabyte 3G 7950's in crossfire<Samsung 500G 840 EVO SSD<16G G-Skill Ripjaw 1600<2-samsung 24" monitors 1920X1200<Corsair AX1200W psu<W7 pro 64<Logitech G19 keyboard<Roccat kone pure mouse<Cooler master HAF932<Corsair H100i water cooler<Zalman ram cooler<Sound Blaster X-Fi Titanium Fatal1ty Champion Series<Logitech Z5500 speakers<Roccat Kave 5.1 headset.