I have a MacBook Pro 13" that randomly goes into hibernation mode & wont's turn on unless I reset the SMC. The laptop is always off/sleep when this happens. The computer is usually sitting for the night either plugged in to charge or fully charged not plugged in. Either way the next morning it's found dead & won't turn on. This does make sense as it does this with power connected or from full charge while asleep. After the SMC has been reset it will work fine for a few days then will happen again. I've replaced the image on the laptop from OS X 10.5 to 10.6 with no change. Only other option is a faulty battery maybe? Can't see it being the PS as it does this when the PS is not connected. Any ideas? Thanks, .