I haven't been on in a while, but i have been reading to see if there was another thread for this. So I've had my phone since July 11th and it has always done this but it is now starting to bug the hell out of me. When i have a phone call and talk for 2-5 minutes or longer then hang up, the phone locks and goes to sleep mode, but the weird thing is it doesn't always do this. Has anyone else experienced this?? If so is there a way to fix this? Your input as always is much appreciated.