Thanks, Rob. I do the same thing occasionally. Problem is that my X-10 ghost usually turns all lights on when no one in the house is anywhere near a remote. I'm beginning to suspect a faulty eagle eye motion sensor. I use it in the kitchen to turn lights on when someone enters, and loghts off when they leave. A few times I've noticed the ALL LIGHTS ON event happens at about the time I'm expecting the kitchen eagle eye to turn the kitchen light OFF. I ruled out the IR543 by unplugging it for a day. The Ghost still struck. Since no one was using any remote RF or IR the ghost has to be either an electrical glitch or the eagle eye. That's the current (get it?) theory, anyway!

Dave