The other day my passenger's side low beam headlight gave out. Today, I pulled the bulb and it wasn't busted. I swapped bulbs with the driver's side, and both were operational, just not on the passenger's side. The fuses that are assigned to the low beam were good, too. Is there another relay somewhere that could have given out? Could there be a bad ground somewhere? Since it's only the one bulb that went out, I would think that this greatly limits the possibilities in searching for the problem. Any ideas on where to look next? Is there a specific ground for the psngr's low beam; if so, where? ...I hate electrical problems. Thanks!