Both my wife's and my E4GTs will have their screen turn off randomly. It don't know if it is just the screen off or the phone is off. The phone doesn't respond to clicking the power button to turn the screen on. My wife was fixing it by doing a battery pull but I showed her if you hold down the power button long enough the notification light flashes blue and then the phone boots and the Samsung GSII logo appears. No idea why this happens. It seems to happen while we are not using our phones though. Is this a bug? Do we both have phones with bad hardware? Anybody have any ideas? We are both running the latest version of the OS. I did root mine but my wife is completely stock so I'm suite certain that isn't causing the issue.