Jean-Paul, David,
Thanks for your responses!
OK, straight up. I have 5ct SC502's, 4ct SC503s and 2ct SC504s. This problem is unique to the SC504s. Yes, if I turn up the intensity the ghosting gets worse. If I turn down the intensity the ghosting get better, but the range that is satisfactory is very, very, very small and hard to stay in that range. There is something wrong.
David, I am in the US.
Barry