Make sure you choose the "Settings"
TAB toward the top, then drag the "Screen area" slider to
800 x 600. Also make sure you're viewing pages in 24 or 32 bit "Colors"
(shown on the left). Click the OK button.
Click "OK" to change
your settings to 800 x 600.
Now click "Yes" to agree
with the settings. Some computers require restarting when your change
your Display Properties.