Hi all, First post on here so sorry if I'm breaking any kind of unwritten etiquette by making a new thread for this issue. But yeah, ever since I updated to 10.9.2 my power button no longer immediately sleeps my Mac. It only works if I hold down ctrl + press the button. As well as this, my Mac keeps randomly sleeping, prompting me to enter my password again. Is this happening to anybody else? Or is there a problem with what has been a very unreliable MBP 2012 model ever since I purchased it in October last year? Eventual thanks!