Links posted in comments on profile walls or activity stream redirects users off the site to view the links. I am using WP 3.3.2 and BP 1.5.5. I have a multisite installation but I am only running BP on a subdirectory. http://www.neosolcafe.com/community. I am using the following plugins.
Advance Code Editor
Buddypress Album
Multi Site User Management
WP-FB Auto Connect
WangGuard
Akismet
BP Profile Search
BP Activity Plus
BP Auotmatic Friends
BuddyStream Premuim
Invite Anyone
RS BP Activity Refresh
WP-PageNavi
WP Smush.it