When I was 'Surfing' the Internet, looking for some "Train" Photo Wallpapers, when I clicked on a Photo to view, my Firefox 3.6.16 browser turned into a "Fake" I.E. Browser Page with a Windows "Defender" warning box in the center stating that my system was invaded with a Virus and that I had to click in the "Fix Problem Box" to remove the virus. Being in Ubuntu/Firefox, nothing I clicked on had any effect. I pulled my power and rebooted and I was back up and running! I then installed a anti-virus program which could not find ant problem or Malware. I am now attempting to find this "Bad" Photo File/Link. The page that has/had the Bad Link was: http://www.google.com/search?q=ge+dash+9+train+wallpaper&hl=en&client=ubuntu&hs=csX&channel=fs&prmd=ivns&tbm=isch&tbo=u&source=univ&sa=X&ei=3lS3Tdz0DYbV0QGBpozmDw&ved=0CCAQsAQ&biw=1280&bih=575 I will keep you posted.