So I have had my D800 since May 5th. I had knee replacement surgery the next day so I have maybe shot 200 pics with it. I took it with me to my sons graduation tonight, took it out of the Pelican case and it was dead. No LED display on top and will not turn on. I had charged two Nikon batteries before I left and tried both batteries and nothing. It is being shipped out in the morning to Nikon for repair. I have had my trusty D700 for over two years and never had a problem. Very disappointed that this is happening with the D800. I will post a update when I get it back to let everyone know what the problem was. I searched online to see if anyone else has had this problem and did not find anything.