I have about 8 images that cycle through the Lock Screen on my 14PM. I manually center some of the images, but over time, and seeming randomly, they all return to their default position. I don't think I am describing it well, but imagine an image with three people. The default has the middle person along the left edge of the phone, so I reposition it so all three people are visible. Eventually, the image will return to the "default" position, and the middle person is back to being on the edge of the display rather than the middle.
