I finally got Hazards SL installed on my Dell D620. I only selected a boot loader in options. But I could only boot in safe mode with one core enabled. So I updated to 10.6.7 hoping that would help. It didn't. Now I have the same problems PLUS my display went black. So now I am using an external display. I suspect a kext is a problem but I don't know which to add and which are safe to remove. Anyone have any ideas? Thanks.