You might have to reinstll Java. But first uninstall LW and all Java versions from your computer (for uninstalling LW go START>Programs>Limewire>uninstall). Then reboot.
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 install LW.

__________________

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