Why won't Mountain Lion run on some MacBook Pros?
I have an older MacBook Pro and was looking forward to upgrading the OS to Mountain Lion. I was at the local Apple store last week and while talking to one of the staff, I was told that there was a chance Mountain Lion wouldn't work with my MacBook, but she couldn't give me a clear answer as to why. I though that the main limitation was that since Mountain Lion is 64 bit, you just needed a Core 2 or later 64 bit processor. Well, my Mac is 64 bit and would seem to meet that requirement. What would keep Mountain Lion from running on some 64 bit Macs and not others?