Our site is setup with captcha on the blog comments. We are using permalinks for the site using /%postname%/. When a user enters a correct captcha, it works fine. If they enter a blank or incorrect captcha, it throws an 500 - Internal Server Error. The URL header changes from the blog to /wp-comments-post.php. Is there a way to keep the captcha from redirecting to the wp-comments-post.php?
Running on IIS 6.