You should both download AVG Free AV. After download, make sure to update AVG & then scan your computer. There's a link for download in the thread below.
http://www.gnutellaforums.com/downlo...s-options.html

If that doesn't fix the problem, please read the thread below...there are a few other fixes to try & if you're still stuck, links to sites offering specialised help for malware issues
http://www.gnutellaforums.com/genera...s-options.html