The screen still works fine, it just has a crack in it.
The point here is, she isn't happy with her Elph. She's frustrated with the picture quality and the fact that it gets dinged up so easily.
Her old Powershot had been through hell and back, mostly on long distance motorcycle trips and while it was scratched up, it worked for her for years. The Elph is only a couple months old and already looks worse than her old camera.