I installed 2 x-10 dimmers today. They both work but the lights on one of the dimmers flicker, kinda like a bad bulb. They never did that before I put the dimmer in. I even swapped the dimmers around and the same thing happens on both dimmers on the one set of lights. Anyone know whats causing this? I talked to Smarthome tech and he said it might be line noise. I thought this only affected the x10 signal transmission, my problem exists from the dimmer used locally.