my problem is kinda unusual! Whenever i unplug my AC adapter from the laptop, then plug it back in.. i get no AC power! its still running on battery. While plugged in i have to then unplug and replug the adapter into the wall outlet, then everything works fine again. Is there some sort of power management option im missing? its not a major issue, just really a big annoyance whenever i use the laptop off battery i then have to move my desk to plug the AC adapter in and out wall to get laptop recognizing it again.