So I have a D620, I installed 10.6.0 with retail usb pendrive it works great, I flashed the custom bios from osx lattitude.com, I have edp 1.9, and multifail but how the hell do I update I feel like I just cant find anything telling me anywhere how to do it please could someone set things straight from me or point me atleast in the right direction? or am I completely helpless?