ReCaptcha

Hi guys

Ive just launched a site : http://spoint.me
As you can see many have registered, but ive had about 20 people contact me saying things like: "Looks like an interesting group but the reCAPTCHA verification system has blocked me from completing the sign up process half a dozen times. "

ive had similar messages from about 20 people. now i know it works as i have over 100 registrations already, but why would so many others be struggling?