I bought it new right when it came out and I am beginning to have problems. The laptop is obviously overheating all the time. I always hear the fans running. Well I have that app GFX which allows you to switch from the Nvidia GPU to the Intel GPU and vice versa and now when I switch it to Intel the screen goes black. I also tried running Mountain Lion on it and it runs very, very slow. Taking it to the Apple store tomorrow night. The guy on the phone said they might give me a new laptop, but it would be a 2010 model? Right now typing this, my system is at 70 degrees Celsius. I'm running Google Chrome and nothing else is running except this tab. When I got it, the computer ran about 40-50 degrees C.