Hi guys. I just got a 2015 rMBP 15 inch (base model configuration) last week and have had two instances so far where I have had to hold down the power button to restart the machine. In the first instance, all my apps became unresponsive--no quit, no force quit options until I could finally do nothing at all and had to hold down the power button to restart, and the second instance happened several days later, coming out of sleep I had a black screen with nothing visible except for the mouse pointer. I waited at least five minutes, but it never cleared up, so I had to hit the power button to restart. So, do you think I should return it? I am still within the 2 week return period. I am thinking of perhaps exchanging it for the 13 inch 2015 rMBP--it has Broadwell, at least. Thoughts?