i bought a 1997 mazda miata about 6 months ago. now that it has turned cold, all my windows quickly fog and when i turn on the defroster, it seems to get worse and i get a smell of a combo of rubber hose and antifreeze. i am constantly wiping all the windows and it seems almost like there is some sort of film on them. my question is, could my defroster/heater be causing the fog/film and what is the solution to ending the problem?