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Any progress? I don't have build in graphics, is there a way to have hardware acceleration with two 6950's still?

I got everything working up to the last step of 4 (adding back the ATI6000Controller.kext to extensionsfolder), when I rebooted I got the infamous white screen.. Now I can't seem to boot at all, not even with -x or GraphicsEnabler=No (had GE=No during the installation). I've got 2 HD6950 in crossfire with HD6970 bios, and when I checked the systemspecification when it was working it recognized two graphicscards (no info though, only that they were ATI's). I've seen this thread, how can I remove the ATI6000Controller and add the kexts from that thread? (http://www.insanelym...page__hl__ 6950)
Also, Im dualbooting with windows 8.

Thanks..

i7 930
Asus P6T-SE
12 gb ram
2x6950
Intel 520 180gb