Try this method: http://www.gnutellaforums.com/333278-post2.html, And also use steps 3 & if still problems then, steps 5 & 6 here: Fixes for Limewire (click on blue link)

You might even prefer using the LW beta 5.2.4 instead of the version mentioned in the first link: LimeWire 5.2.4 (Beta) - Lime Wire The Beta version loads much much faster than previous versions & has some other improvements which will eventually be officially released as version 5.3