  <SECT1 ID="MOUSEBUTTONS">
    <TITLE>Notes on Using The Mouse</TITLE>
    <PARA>
&prog; makes use of all three buttons of the mouse under X, but other windowing
systems often have less than three buttons.  To make life easier when running
&prog; on those systems, pressing the <LITERAL>alt</LITERAL> or
<LITERAL>meta</LITERAL> key and the first mouse button will give the same
effect as pressing mouse button three (usually a pop-up menu).  Pressing the
<LITERAL>control</LITERAL> key and the first mouse will do the same thing as
mouse button two.  On Macintosh machines the Apple key will do the same as the
<LITERAL>control</LITERAL> key.
    </PARA>
  </SECT1>
