Hello! I'm using a 2011 13" MacBook Pro. For the past few days the brightness always resets to full on boot up and just when the spinning wheel stops loading(before desktop loads), it dims automatically to the level I've set it at. I've already tried resetting SMC and PRAM but neither seems to have helped. I thought my new Mountain Lion install had something to do with it so i reinstalled Snow Leopard but the issue still persists. What could be the issue? Any help will be appreciated.