Can anyone tell me why my wifi keeps turning off. It never used to do that. Yes, I have the 'Keep Wi-Fi on during sleep' set to "always" and I've stopped all the power/battery apps that might be turning it off to save juice. I have a strong signal, so it's not on the edge of reception. And I can always turn it on and it comes right on. But close the case, it goes to sleep, later I pick it up and... no wi-fi. What's with this thing?? It seems to have started since I rooted it but I've been told that rooting would have no effect. Any idears???