Note:There is a problem when viewing this page with Windows 95 that
causes graphics to be displayed incorrectly. Images of the puzzle and
the controls are sometimes drawn over each other making it difficult or
impossible to use this applet. This can sometimes be corrected by
exiting and reloading the page a number of times. It is recommended
that this page be viewed using a Windows NT, or Unix / X11 workstation with
Netscape Navigator 2.0 or higher.