Just yesterday I read a post of another user who had similar problems and could finally solve them (you might want to try that way):
http://www.gnutellaforums.com/showth...ghlight=solved
Other options would be to uninstall your present Java version and download the JRE offline installer of the newest version:
http://java.sun.com/j2se/1.5.0/download.jsp
Or, if that doesn't do the trick, delete your " .limewire " preference folder (Point #2 & 3 in Fixes for Limewire)
http://www.gnutellaforums.com/showth...threadid=36420 