have a 94z convertible...and there are two large, hazy, rainbow-edged spots that appear on my windshield whenever i start the car. (heat from the engine coming through the dash vent?) is there any way to get rid of them?

 

mine does the same sometimes i wish i could tell ya what it is...

 

I have the same problem as well. I think its just air coming out of the defroster vent. Its really annoying. It fogs up the whole winshield sometimes so i can't see where im going.