I'm still within my two week return window, so I'm noticing everything that might be a problem. I recently posted that my 15 inch MBP SR mysteriously booted up when I simply plugged in the MagSafe adapter. (The computer was off and not sleeping.) I did an SMC reset, and so far that hasn't happened again. Apple Support just told me to monitor the situation. Yesterday, I shut down the computer and noticed that the LED on the MagSafe adapter plug was not on even though it was still plugged in. (It had been green when I booted up, and the battery was fully charged.) When I rebooted the computer, the LED remained off but the computer showed that the adapter was connected. When I disconnected and reconnected the adapter, the LED turned green. I don't know if this is a power adapter issue, logic board issue or software issue. Any ideas?