Just picked up the Epic yesterday, and already been having issues all day long. The phone has does this about 5 or 6 times today. It will fade away, and when I come back to it a little later to check messages or anything, it will all be blacked out, and nothing will come back. (by hitting the power button) No matter what I push, the screen stays black, and the phone seems like it is off. (A few times, the lights have stayed on, and the buttons act like they are responding, but nothing works still) It has also lost signal completely twice today, and I've had to restart it to get signal back. (didn't move) Any ideas. Going back to sprint today to change it out, but pretty frustrated already.