Well this is bizarre. Last night I'm trying to sleep and I hear an odd noise. To make a long search short it turns out my EP2 was on in the camera bag. I haven't used it for weeks and nothing is touching the on/off switch. I turn it off and take it out of the bag. 10 minutes later I hear the same noise again. It's back on. The noise is the movement of the lens when it comes back on. It does this two more times in the night and I finally take the battery out. Hasn't done it today since I reinstalled the battery. Very strange. Checked the card for images and fortunately no ghostly apparitions appeared.