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ATI 7950. Screen blinks

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Hi all. This is my first post after a month studying the forum and trying to solve my problem.


I have an ATI Shapphire 7950 vapor-x working in Mountain Lion (now 10.8.4, but it happens with 10.8.3 too) and my screen blinks randomly. Is more frequent when i use youtube or ableton. 

I boot with clover in a usb and in my system profile the information is correct, in graphics and in pci cards.


I follow this guide http://rampagedev.wordpress.com/kext-editing/editing-atiamd-framebuffer-personality/ for edit my framebuffer (Futomaki) and this one http://rampagedev.wordpress.com/2012/12/04/about-amd-7970-working-with-full-qe/

 for change the dsdt, and nothing works. 


I tried to use hwmonitor but gpu sensor freezes and reboot the system.


I don't kwon what else to try to make it work ok. 


I don't know if this is important but when I boot, the screen is white for a second, then turns into black, and into white again. I use fbrotate so i don't have to do the sleep trick.


Sorry for my english


This is my config.plist and my dsdt.



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