I found a crack in my windshield. I see no impact point. No place where a rock hit it or a bullet or a blunt instrument. It's about a foot long and it's a clean crack. This Expedition is about 10 months old. 8,000 miles on it. Has anybody had this problem? Also a friend told me sometimes when a vehicle is making a turn the frame of the vehicle will flex or bend causing the windshield to crack. Anybody know anything about that issue and could it apply to my case? Thanks.