Every so often somebody or other leaves a garbled comment on my Komento comment area. Not really a big deal but annoying. I have Recaptcha set to reduce the activities of these morons but all anyone needs to do to bypass Recaptcha is to click on the tick "I'm not a robot". I thought that Recaptcha usually features a requirement to select a number of images from a grid. This is not a feature of my setup. Can this be made more robust?