Thank you for letting me know! You turn away for a little while and all hell breaks loose.
The captcha provider seems to down for me as well. I have placed support ticket with them.
The thing is, I already have a new captcha provider for the next update. Not sure if I should go ahead and implement that right now, or wait until the rest of the things are done? I will let that be a decision for the two of you. (Please note that the new captcha will be very different from the current one)
UPDATE: They are already aware of this problem and it should be fixed rather soon. So I will keep the current captcha for now.
So we have to wait on the CAPTCHA support personnel? I hope they're also aware of how to FIX the problem...
For real, please implement a backup CAPTCHA if you can in the meantime. It may be best to have a secondary CAPTCHA anyway.