I am using Windows Live Mail version 2011,  in Windows 7. It worked fine until today. I replied to an email and only got a blank answer frame with a reply heading and Unicode UTF 8. I  tried answering several different emails, all with the same result. Now, in addition to the reply freezing, Live Mail is closing itself and restarting each time. 

I have gone into the Options menu  Read - Fonts, and default is set to Western European (Windows).  In Send, Reply to messages using format in which it was sent is unchecked. International settings is default Western European(Windows).  I have experimented with checking and unchecking things and changing defaults to Unicode UTF 8 etc, but it seems to make no difference.

Please help if possible.

Thanks