I built this machine back in Fall 2009 when Lifehacker did a Snow Leopard Hackintosh build. I used exactly the same components. I recently upgraded to Lion using MultiBeast. I have everything working perfectly except sleep. When tried to be put to sleep, the screens go blank, but the system doesn't sleep. I am then unable to wake from this state and have to hard reset. I'm looking for help as to what area I need to look at in order to get sleep working. Any thoughts, advice, threads you can point me to would be greatly appreciated. Thanks for reading.