Booting into verbose mode, startup hangs here: siocprotodetach_in6 utun1 error 6 (see attached image).
I don't see what this error should have to do with the graphics card, so I'm wondering if there is some conflict rather than something directly related to graphics. Currently I have installed 4 kexts related to the card: ATI4800Controller (modified with my device ID, 9442), ATIRadeonX2000, ATIFramebuffer and ATISupport. I have tried mixing and matching these to no avail. The Controller and RadeonX kexts are from the 10.8 Exotic patch and I repaired permissions, etc after installing. The text before the "siocprotodetach_in6 utun1 error 6" error is not always the same but it always hangs right there if I don't use GraphicsEnabler=No. Finally, I tried booting with the string "ATIConfig=Cardinal" which led to the same error.
Any ideas? Thanks in advance.