I asked because my wife has the iPad in a different state and she just called me that the screen went completely black while she was e-mailing. Sounds like she must have drained the battery to zero, but she claims it was 20%. I told her to press the home button and nothing happened. I have no idea what she did. Her family there are all computer savvy, but none of them are home. When they come back, I'm sure one of them can figure it out. I need an aspirin.