Hi Dr. Hurt. I had problems installing Asus HD 5450 on my Asus P5K-VM Mobo. Currently I use Nvidia GeForce 9400 GT, but I keep getting fermi freezes. Well, with the original kexts, all I get is the fray screen with the spinning gear and I never get on the desktop. I edited the kexts, but all I got was a black screen. I am totally illiterate in editing dsdt. Can you do it for me please? And eventually tell me what you did and where. I may learn.