I have a AFI that keeps tripping when I turn the lights on, when I take all the bulbs out the circuit holds...ok bad AFI right? Wrong, for kicks and giggles I removed the neutral from the AFI and landed in the busbar and tested the lights again, and again they tripped the breaker. Anybody seen this b-4? It seems if the switch leg was crissed cross to the neut, then the circuit would trip regardless if the lamp was present. What are some other reasons you guys can think of?