http://www.gnutellaforums.com/showth...threadid=49610
I suggest you go to the above post and follow Grandpa's suggestions very carefully. No guarantees, but try it and let us know how you get on.
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Just a note for information. Uninstalling limewire never helps a great deal usually. More can be achieved by deleting the limewire preference folder, as it is damage to this that often causes problems. Grandpa's first link is also useful for this purpose.