There are times when I need to do the "alt/command - cd eject" combination for fast entry into sleep mode.. I've had my MBP since November and I'm running the latest updates. On several occasions (at least 10), I've come back to my computer very hot and still running - through the screen was off. What's the deal? And how long is my computer going to last if this keeps happening? The thing gets very hot just sitting there with the lid closed for hours on end.