There have been a few people reporting problems after the most recent update to java. Mostly the game crashing or giving a java security error.

The cure has been the same as usual after a java update :

Clear out your internet history, including downloaded program files.

Uninstall java from control panel (there may be more than one entry, get rid of all of them!)

Restart the computer.

Go to www.java.com to do a fresh install.

This should sort out any problems.


(for those interested - the problems seem to occur when the java applet stored in the browser no longer matches the version installed, or, when java updates itself while the game is running)

I managed to sort mine out and this is what i did:
I uninstalled the all the java then i installed it again,

When it installed i closed all the browser windows and the internet,

Turned the internet back on went on to java.com,

In small writing near the install button which is green it says "do i have java" click it then click verify installation then wolla should be sorted.

Well it did for me anyway

Edited at 20:24 Mon 8/10/07 (BST)