rious ways to move the graph. To move the graph in any direction you can
          drag from the whitespace of the graph.</P>

          <P>By default, the scroll wheel zooms the graph. The scroll wheel can also be used
          to scroll the graph vertically by holding the <TT><B>Ctrl</B></TT> key while
          using the scroll wheel. Alternatively, you can move the graph left to right using the
          mouse while holding <TT><B>Ctrl-Alt</B></TT>.</P>

          <P>The satellite viewer may also be us