Hi Praney, I'm having a similar problem with the fb captcha, It seems that the source to the image file is on a random loop so sometimes it's like this: http://www.facebook.com/captcha/tfbimage.php?captcha_challenge_code=* and sometimes its like this: http://www.google.com/captcha/api/image?c=* Some goes it gets it straight away and sometimes can't get it at all. Did you manage to figure it out?