jeanlin, I think maybe 4890 failed with new aty_init because of problems with reading bios from card, I saw such problems with 2 4870 cards on pc.
So i updates aty_init and added fallback to using bin_image from plist to initialize a card, if reading biso from card failed, kext there - http://netkas.org/?p=104
===========
Btw, I added nvidia support to aty_init, with all latest gt200/gt200b chips. New game when we can get quadro 4800 drivers![]()
Damn, you should get paid by ATI and nVidia for all this work!