I am trying to get a haze off the glass, what is the best way to do so? The haze can only be seen if the light is right and it appears to be mainly above the where the front air flow holes are. I do recall when burning there this same area always had 2 areas of whitish haze, but easily came off with a damp rag. Is there any way to get this removed, especially since the right o light is from my spot on the couch, and it's been driving me crazy all summer!