I have a NC with the N2A card. I've been dealing with these failure to wake. My tablet will either go to sleep or I out it to sleep. When I go to wake it I get nothing on the screen. It is still alive because I'll get notices but I can't get the screen on. I have to force it to power down then go through the reboot. It will happen whether its sleeping for a half hour or thirty seconds. No rhyme or reason. Its quite frustrating. sent via nookcolor N2A.