Buddypress profile and activity links broken

HELP. Oops! this link appears to be broken for all of the buddypress activities/profile

Wordpress 3.3.1

buddypress 1.5.3.1

Theme (on subsite): Buddypress fun 1.4.1

buddypress activity plus 1.3.1

History: When this was initially installed, it all worked. However, we wanted our community site as one of our subsites that also used cubepoints/marketpress and not have user always being linked back to main site whenever they clicked onto any of the BP menu items. From live support last week, I was directed to define the root blog to another site.

define ( 'BP_ROOT_BLOG', 2 );

in wp-config.php or in bp-custom.php files

I tried inserting this code in both places and each time I got the same error:

Fatal error: Call to a member function get() on a non-object in /public_html/wp-includes/query.php on line 27

Although I still want to accomplish the Root Blog change, I currently have it as default and now I have problem with all of the links broken. So far I have resaved the permalinks settings – which made no difference and then I deactivated ALL plugins and then reactivated buddypress – but I still have the broken links. I assume I have to fix this before the blog ID issue – PLEASE HELP