Well, you might be surprised that some words here are censored; but imagine you would moderate here and everyone would come up with a foul language like you present here,......besides that there are also younger people visiting this place......
To your problem, have you tried to install an older version of Java, or maybe the 1.6 beta version; just to see whether the problem will be the same. You can downlaod an older version form Java here:
http://java.sun.com/products/archive/
And for the 1.6 beta you can go here:
http://java.sun.com/javase/6/download.jsp
In both cases you should download the JRE offline installer. Uninstall LW and all other Java, reboot, install the downloaded Java (but only one of them, not both), reboot again and then install LW.
If the older doesn't work, uninstall it, reboot and try thye 1.6 beta.