So I just left sprint for Verizon and got the M8. It was the last one in the area too, but the rep drove 20 miles to pick up the second one for my fiance. 5 times since I got it this afternoon the screen failed to power on when I used the power button or double screen tap. I had to do the pwr/vol button reboot to get my display working. One time was after a phone call. Has anyone else had this problem? I got the phone charging now, I don't know if a reset the phone it will fix it or if this is a hardware issue. If it's hardware I can't exchange it until they get more in. Any input if it's worth it trying a factory reset?