Late 2011 15" Mac Book Pro with Intel 2.2GHz Quad Core i&. OS X 10.9.5 I upgraded the RAM from 2 x 2G to 2 x 8GB today. Intel Graphics 3000. Is it safe to play Minecraft and Balck cop. can I use a Game Mouse? I had a Game Mouse made by not well known called Aula Varanus. Worked ok for just a month. When I plugged this USB mouse on my Mac Book Pro yesterday-screen turned black. Icould not boot or SMC reset. After over night, the Mac become bootable in the morning but the Game Mouse is not recognised by the Mac!! I do not know if any damage done to my Mac?