okay, I had LCA575 build me some black housing with DDE headlights, and they have been working fine for the most part, but for the last month, when you cut them on, about a minute later the left one starts to flicker really fast, and then it will go out.Completly.I am wondering whether this is a bad ballast, or a bad bulb, or a bad connection.I had a local car stereo shop that is very knowledgable about cars, who also hooked up the dde's, check the connections.He says they are all tight.What could this be?