Take Birdy's advice here.
Download AVG Free AV. Update it & scan your computer. There's a link for download in the thread below.
tools/options
If AVG doesn't also help with LW constantly restarting, have a look through the thread below...there are a few fixes from different posters. If nothing helps, this thread has links to forums that offer specialised help with malware issues.
http://www.gnutellaforums.com/genera...s-options.html