Well. My notebook:
Acer Aspire V3-551G
Win 7 64bit
Amd Quad-Core Processor A10-4600 with Turbo CORE technology up to 3.20 GHz
Amd Radeon HD 7660G+7670M 2GB
Everything was ok until i tried to update crimson to the latest version. Just right after this i lost dual graphics and got BSODs with atikmpag.sys. I've tried to go to the windows savepoint, but it didn't help me. Reinstalling OS didn't help me too. Now i've got no video card at all. Thank u, AMD. Now u have to tell me how to repair it again.