Driver side headlight wouldnt come on sometimes but after smacking it with my hand it would come on or after turning the lights off and back on it would come on. Problem is now that the headlight will not come at all. I have looked at everything checked all wires and it all appears to be good. This is my first car with HIDs so I dont know much about these. What could the culprit be because I am almost positive it is nore than just the bulb.