Try updating your Java. Use the JRE offline installer & remove your current Java version before you install the new one.
Java SE Downloads

Delete LW's preferences folder when LW's properly closed. See the link in post #2. Deleting that folder will change all of LW's options settings, you'll have to go back through afterwards & reset everything. If you're not sure of your settings, go through tools > options first & write everything down.

Right click on LW's desktop icon > properties > compatibility. Try running in compatibility mode for XP.

If you have Alcohol software installed, look here: http://www.gnutellaforums.com/genera...tml#post293318