problems with sound or KP at boot, need to delete AppleHDA.kext
always need to fix files attributes with Kext Wizard after installing or deleting kexts, else KP at boot
if you will find problem with Bluetooth, try to reinstall DellBluetoothHCI.kext, reboot
when installing apple update 10.6.8, you will need to replace after update this two files: AppleACPIPlatform.kext and IOPCIFamily.kext from 10.6.7 and delete AppleHDA.kext in S/L/E
for apple update 10.6.8 you will need to have FakeSMC.kext v.3.1.0, included in archive above and Chameleon 2.0 RC5 rev.1078
for Lion 10.7 with ACPI_SMC_PlatformPlugin error at BOOT, need to restore AppleACPIPlatform.kext and IOPCIFamily.kext form SL 10.6.8