You could start by deleting LW's preferences folder. Check this link for info: http://www.gnutellaforums.com/welcom...tml#post363137

If you still have no joy, try using CCleaner: CCleaner - Optimization and Cleaning - Free Download

And if you're still stuck after all that, check this link for another possible fix:http://www.gnutellaforums.com/gettin...ys-starts.html