Please wait while the applet loads. This could take up to 30 seconds on slower machines.

If the "Straight Line" applet does not load, then, probably,

• you do not have a Java-enabled browser (the latest versions of the two major browsers are Internet Exoplorer 5.5 and Netscape 6), or
• the Microsoft Virtual Machine was not loaded when you installed Internet Explorer (reload Internet Explorer using the "Custom" option and make sure the "Microsoft Virtual Machine" checkbox is ticked)