Hi, I'm a newcomer to droidforums also a newcomer to android phones. Less then a week ago I've bought a Motorola Razr HD instead of an iPhone 5 or a Galaxy SIII. I was having a nice experience until yesterday. The phone was in my pocket in sleep mode for battery saving and when I've started the phone it started to press in phone app "*" and opening contacts while I was pressing the back button to stop it with no sucess. It worked nicely again after I've restarted it. Why did it happened? Is it a software issue or a deffective piece of hardware? It's still in guarantee, should I contact Motorola for a phone replacement?