We have had close to 500 registration requests from the domain hotmail.com since yesterday and all of them have spanish like names. This is very unusual traffic for us. I attempted to use the sabre.1.0 plug-in to put up a captcha but it blocked all attemps to register even with a correct captcha. Maybe because we're on IIS and behind a reverse-proxy? At any rate I have had to block the domain in the registration settings section but that is only a short term measure until we can find a captcha that works in the network installation. has anyone found a captcha that works on windows in a network installtion?