I've had my 15" for about 6 months now without any problems. I'm running a G4 1.67 Ghz with the latest version of OSX. I was coming out of a coffee shop (for the WiFi) and shut the lid to put it to sleep. When I reopened it about 20 minutes after, it wouldn't recognize it was awake. No response from the mouse or keyboard (even the capslock wouldn't light), telling me it wasn't just some screen error or my contrast was off. After manually holding the button to restart (to no avail) I was forced to remove the battery. When rebooting it, it would show me my desktop and tell me my clock was set to March 2001 and then go right back to the dead black sleep screen it did before. I have not the slightest clue what to do, being that it worked fine before, I didn't change any software (nor update it) and no peripherals were connnected either time. Any advice?
~Vash
~Vash