I've had this happen three times in the past few weeks: My PowerBook (1.33GHz G4 15") is plugged into the wall from the time I get home until I unplug to go to work the next morning. At bedtime, the screensaver cuts on after 10 minutes, then the display goes to sleep after 20 minutes. I do not ever put the PB to sleep except during transit, since it folds. At some point during the night, the power adapter stops sending power to the laptop, the battery cuts in, drains down to near zero, and forces the PB into hibernation. I wake up, see the light ring on the adapter plug is not lit, unplug the adapter, wait a few seconds, plug it back in, and the light ring turns green then orange, and then I can reboot the Mac. I have my phone cradle and alarm clock plugged into the same power strip without any issues. Do I have a faulty AC adapter, or am I doing something wrong?