Mine did it and they were replaced under warranty. It's the outermost layer of plastic coming off. I picked up a set of very used OEM headlights from a member here to have as a backup, only to have the headlights replaced (again!) after last years hurricane Gustav. I'd say that there are a few options; a good set of used headlights, I'm sure there are a few sets out there. Next woudl be going through a dealer (member ITLRUN would be a good source) based Ford parts department. Last would be an aftermarket set of factory style headlights. I see them in many late model catalogs, but I cannot vouch for their durability.
