I am trying to use LED's for the first time this year. I purchased LED icicle lights for the roof. I have about 12 of them across the roof line but only 3 of them plugged in together. My problem is that some of the strands will stay on even when the song is over or the channel is turned off... even when the computer is turned off and no show is running. I have tried attaching one incandescent bulb to the end with no effect.[/size]Any ideas?