In lights out mode (Version 5.2) there is a white line around the image. This is highly distracting. I understand it was removed in v.4 and reinstated for v.5. Could this not be an option in preferences? I started using LR in v.4 and use the lights out feature constantly....did use it. While I can see the white line being useful for some, it makes Lightsout unusable for me now and I suspect others as well. Not sure why there is this back and forth implementation of a feature but it is quite disconcerting.