Message Box
  To dismiss the message box and continue editing, click M1 on the
  ACKNOWLEDGE button.
  Usage notes:
  o  EVE stores messages in a system buffer named MESSAGES. To view the
     entire message buffer---for example, to review compiler messages from
     using EXTEND commands---use the following command:
        Command: BUFFER MESSAGES
     For more information, see help on Message Buffer.
  o  For information about status messages, see the DEC Text Processing
     Utility Manual.