The sunshade for the vista sunroof is just a cloth material that rolls up into a drum when retracted. The cloth has come undone above the drivers head and only gets worse if you try to use it more. So I no longer use my sunroof and the cloth looks bad and is not tight like it should be. To fix, you must buy a new drum and drop the headliner out and replace. I was quoted $500 from a body shop that typically does the repair for the local Ford dealership. It's a common issue and an expensive one to just fix an annoyance.