I bought a 2006 civic hybrid as an used car at 26k. Its windows gets foggy even on sunny days when it doesn't rain. Especially rear window gets misty and when I wipe the bottom of the rear window, paper towel gets wet. When I blow up the air ventilation system, the front window becomes clear but the rear window doesn't change. Is there anyone having a similiar problem? Tonight when I tried to wipe the rear window, I saw a thin ice on the bottom of it. I guess that water collected froze. Is this coming from the vent for a electric motor behind rear seats?