I don't remember what settings changed on my EOS 40D, but today when I tried to AutoFocus by pressing the shutter half way, I don't see the AF points highlighted. The 17-55mm f2.8 lens is doing auto focus properly. Because I can see the barrel rotation and motor noise. Without this highlighting, I couldn't figure out where the lens is focusing on my frame. Any 40D or EOS users please throw some light. Highly appreciate your response.