There have been several warranty issues with the verts so far. One common one is the window coming unglued. Probably a bad heat seal out of the factory. Have seen this on other tops before. If Ford won't fix or replace it, use 3m windshield urethane. Just do a google or yahoo search for that term and you will find plenty who sell it. A local shop here who changes tops for dealers and does repairs etc...swears by this stuff. Says its like iron if applied correctly and should hold for a couple of years. Just my 2 cents.