If you're experiencing problems with these Java games, try
the following to solve the problem:
1. Go to http://www.java.com/en/download/help/testvm.xml to see if Java is working
on your computer;
2. Follow the above instructions on this page to see if it fixes the issue;
3. If you are running Internet Explorer go to 'Tools' then 'Manage Add-ons'
and make sure the Java programs are enabled;
4. Go to http://www.java.com/en/ and download the latest Java version.
If none of these suggestions work can you email Chris via the Contact page so
he can see how widespread the issue is