Ok, just got the Ultra last night and everything has been fine. However, on the way to work this morning, I went to "wake up" the phone by pressing the power button, and the screen is blank. There is absolutely nothing there. I can swipe the screen and hear that it is on, however, I see nothing. I tried re-booting the phone, I tried calling it from my work phone, and I even tried using voice command. It functions, I just can't see anything. Any help would be appreciated!