Hey all, I've had a problem with my windshield for awhile where a thin film of..... something..... forms on the interior side. Sometimes messing with the airflow clears it up, but as soon as I turn the air off it comes back, which is a problem on cold days when I need to use the cold air to clear it up or the hot air on hot days. It's especially noticeable in the morning or evening when the sun is low and I've got a good glare on the windshield, or when it's raining (like today). I can rub some off with my hand, so I've cleared a bit in the middle (circled in the picture) to make it easier to see, but it eventually just goes back to being covered over again. I've looked in to cleaning my windshield and have done it many times but no matter what I do I can't get rid of it. Has anyone else had this problem and solved it? How?