BuddyPress.org

if you use 1.7 trunk you can proceed. If you’re on the stable release 1.6.3, you have to check the path of the group forum and the path of the SW forum.

Bp use by default “forums” for group forums and this slug has priority. This means it cannot be reused for another page, like bbPress plugin.

bbPress plugin comes by default with the same slug name (settings > forum > forum slug)

You simply have to change this to something other.