Sounds like you have a virus. Read through the thread below
WARNING: Viruses on the network you should be aware of

You can try this fix if you like, someone recently said it works well
http://www.gnutellaforums.com/showpo...&postcount=141

If that doesn't get rid of the virus, you can go to Norbiesworld & get some free computer help. Just go to the site, register & follow the directions for posting a HijackThis log.

Always make sure that you're using a good AV. Keep it updated & scan all downloaded files before opening:wink: