All of my x10 units set to the 'A' housecode work perfectly. Not all of those units are on the same phase. None of the units on the 'B' house code work properly. They all turn on and off as desired using a palmpad but they don't dim right. Now if I use AHP to dim them, they work perfectly. AHP registers that I am dimming the lights with the palmpad but the lights don't dim or brighten reliably. So basically, why do the units work perfectly using AHP to control them, but the palmpads do not even though AHP can see the palmpad sending the commands? It doesn't appear to be an RF issue as evidenced by the fact that AHP registers the RF commands. It doesn't appear to be line noise/signal sucker stuff as evidenced by the fact that using AHP to issue the commands, everything works.