About 3 weeks ago, my droid began acting erratically. From a black screen, sitting on my desk, or bed...the screen would magically turn on. And not always to the lock screen. Sometimes would just turn on and be unlocked (I don't have it password locked, so it would open to the desk top without having to swipe) And if left alone, it will go to dark after 1 minute. It has cycled through this on/off 3 or 4 times, all without me touching the phone at all. If I power it down, it appears to solve this until....I don't know what, but eventually it will go through this routine again. Thoughts??