I am running Windows 7 Professional on my MacBook Pro. Using an external Acer blu-ray drive and the included PowerDVD 8, I can only get the audio to play. I can see the blu-ray menu, but other than that everything is black. I downloaded the latest ATi drivers but that didn't change anything. I am installing my old version of Windows Vista to see if that will help. Does anybody have any experience using Windows 7 and blu-ray on their MacBook or MacBook Pro? I know that my ATi x1600 is not fully supported in Windows 7, so I am hoping Vista may fix it.