Hi, I read in several places here and in insanely mac forum, that people were able to install and configure their 2400 hd pro (devid 94c3) video adapters. I tried to follow them without any luck. After injection of my device id into ATIRadeonX2000.kext, screen for a moment gets black during boot time and then becomes stripped, like having wrong frequency Only -x option helps. Does anybody know how can I cure this?

I have exactly the same problem with my ATI Radeon Mobility 2400 (94C9) and I cant get it fixed!