Why won't Skype run on my Android tablet?

摘要

Q I have an Asus ME173X tablet running Android 4.2.2, on which I can no longer get Skype to work. When I open Skype I get a blue screen with a welcome message. However, on touching to sign in all I get is the blue screen with a white square and the word Microsoft. Whatever I try to do at this point will not allow me to enter my sign-in details. Can you help?