My friend has a MacBook that has worked flawlessly for months, until one day it suddenly wouldn't turn on, unless you plugged the MagSafe adaptor in. If the power supply comes out, the computer shuts down instantly. The picture in her top right menu bar is this when plugged in with the MagSafe Notice how the symbol where the battery is supposed to be is just an X. I have NEVER seen this and am not sure if there is anything I or her can physically do to solve it, other than sending it back to Apple. Does anyone have any advice or thoughts of what to do? Or is this a "send it to Apple" thing?