The first link will explain to you how to find the " .limewire " preference folder:
http://www.gnutellaforums.com/showth...imewire+folder
The second link tells you about how and why to delete it (Point #2 & 3 in Fixes for Limewire)
http://www.gnutellaforums.com/showth...hreadid=36420:
But I'm not sure whether it will make a difference to your problem. Though it will be worth trying......