Currently Being ModeratedAug 15, 2013 7:53 AM (in response to redmosquito1)
Hi, I have the exact same model of Macbook Pro as you, only I have not upgraded the RAM. I am experiencing the exact same problem with Civilization 5, only before it started freezing the computer I had about 40 hours of game play. There doesn't appear to be anything that has caused this and it only started happening in the middle of a game.
I Have performed a fruitless search across the internet and a few people appear to be have the same sort of problems on their Macs but no one has a solution.
Only after rebooting it several times in a row was I able to access it without a freeze. My Macbook Pro is now completly locked up at the user menu after I tried to launch Civilization 5 again, and I can't even login to it after performing a hard reboot.
I know this doesn't help, but I don't where else to look effectively for help ,