Any ideas, i also have a problem where it will only boot in AHCI mode, when i switch to native IDE mode i get still waiting for root device problem, i was told by adding AppleIntelPIIXATA.kext it would fix the AHCI mode problem and also let me see my IDE DVD Drive, however after adding it and fixing my permissions, i still cannot boot in IDE mode or see my DVD Drive, please any help?

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iMac ::: Mac OS X 10.6.1 ::: Intel Core2Duo 2.93GHz ::: NVIDIA Geforce GT 120 256MB ::: 4GB DDR3 RAM

Milanca Project ::: Mac OS X 10.6.1 Retail ::: Vanilla Kernel ::: Intel Core2Quad Q6600 2.4GHz ::: NVIDIA GeForce 8600 GT 256MB ::: 4GB DDR2 RAM ::: GIGABYTE GA-EP35C-DS3R