Okay, uninstall LW and all Java versions on your pc.
Then reboot.
Go here to download said JRE offline installer for your system:
http://java.sun.com/j2se/1.5.0/download.jsp
Install it and reboot again. Then install LW again.
Hope that solves your problem.....

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"Never Argue With An Idiot. They Will Drag You Down To Their Level, Then Beat You With Experience"