@Mutant, I want to know more about your kernel panic when you drop NullCPUPM, specifically if it's a type 13. If you could post a pic of it that would be great. I think everyone else is mostly using DropSSDT=Yes. Also I don't think most people on this thread are using any distros like iAtkos. I have a suspicion that caused your video issue when you went to 10.6.6, but I don't know, so my suspicion probably isn't worth much.