When I put my phone down, it is always at the screen with the live tiles. I wait for the screen to go dark before I put it in my pocket. When I revive my phone, I have to enter a password from the lock screen to use again. the problem is that the phone will not be on the tile page, but elsewhere. I thought the lock screen was supposed to prevent this type of "accidental" usage. Photoe, email, or other apps are what the phone in on after unlocking it. How do I correct this issue?