I am using WP Multisite 3.5 with the Gravity Forms User Registration Add-on v1.4 at http://magicwonderful.com/register
When a new user registers, the email that is generated by WordPress says, "Log in here: http://magicwonderful.comtoby4/wp-login.php" rather than "Log in here: http://magicwonderful.com/toby4/wp-login.php" - notice the extra slash after the ".com".
When a new user signs up via the default WordPress signup page, the generated url is correct: http://magicwonderful.com/wp-signup.php
Is this a known bug? Is it something on my setup? Any ideas on where to start troubleshooting this?