Notice that when you run your graph and are presented with the ``Graph'' window as shown in figure 8.5, you have a ``Setup'' button available. Clicking the ``Setup'' button displays the ``Graph Setup'' window (see figure 8.2). You can change any of the setup options from this window and then immediately see the results by choosing the ``Apply'' button. The Apply button is available on the ``Graph Setup'' window only when you have your graph displayed on screen.
Try changing an option on the ``Graph Setup'' window, say the Background and then click the ``Apply'' button. Notice how the graph is immediately updated to reflect your change.