How many shares do you have? How many incomplete files? How much ram do you have?
It may be a java problem all the same. Which specific java version are you using, is it up to date? You could try removing all versions of Java & reinstalling using the offline java http://www.java.com/en/download/manual.jsp (which is about 15 MB in size for offline option.)

Also delete your LW preferences: http://www.gnutellaforums.com/genera...der-vista.html