Sometimes, using my automated system, reCaptcha doen't show the captcha image, probably because I decrypt too many captchas at the same time and reCaptcha blocks some of my requests as "spam". Do you know what reCaptcha outputs as a message when a request is refused? For example, does it print "sorry your request has been refused" or "Too many requests from the same IP". Do you know what the exact output is? I ask because I'm not able to reproduce the problem, in front of me. It always occures when I'm not watching! Thanks in advance!