Minor electrical glitch

I totally understand about grounds and what weird things can happen but from my many experiences (eg) bad ground from toad to MH u get all kinds of lite problems not just one real weird symptom.Its definetly not a ground problem from the MH to the Toad.I think what im going to do is disconnect one headlite then the other to see if that causes things to work normal as I suspect its a headlite wire /ground problem maybe? anyhow thanks for replys and I will let U know when and If I figure it out in next couple days
One thing I never mentioned is I can put park/run/ clearence lites on and it works fine.just not with headlites