I got my Tab 2 today, and after using it for about 2 hours total and it blinked off. At first I thought that it was just the powersave function, but it won't turn on. I've pressed the power button, I've held the power button, I've held all three buttons, nothing. I've been charging it for about the past hour with the AC adapter and still nothing. Any way to get it to start again? ::EDIT:: I've also tried to hold down the button for over a minute, and holding down the button for 30 seconds and holding a finger on the screen.