I have been using Windows Live Mail for a while under Windows 10.  During the week-end, something has changed.  The messages don't show up has they used to.  They rather appear as an attached .txt file or as a web lien that I can't access.  It happened after I have received and opened a .gif animated file from an Apple phone user.  Any clue as to how I could get back to my usual e-mail format.

Thank you.

[Original subject: Windows Live Mail 2012]