BuddyPress.org

Odd. My BP site is a subdirectory of my main URL. So I have my main site (WP) and a subdirectory (WPMU) and BP. If I put the registration link in the WPMU blog (that serves as BP’s main page) the link is broken, redirecting to the WPMU login screen.

However, if I place the BP registration link in a WP site, the link to the BP registration page works without a problem.