windows live email disappears while typing & pop up menus constantly appearing although disabled in Office 13

While typing an email the entire message disappears from the screen with the blank email message remaining on the screen. The email has not been sent, it simply vanishes. Usually I am able to retrieve the message using the "back" symbol. However, the continuous [also] problem with menus popping up sometimes prevents my recovering the message due to the pop-up menu blocking access to the back icon.

Any suggestions?  This is very frustrating, both problems.

Rose