It might also be connected to a Java issue. Uninstall LW and all Java versions on your system. Reboot and then download the JRE offline installer of the newest Java version from here:
http://java.sun.com/j2se/1.5.0/download.jsp
Install it and reboot again, then reinstall LW.

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