Re: Cannot post new topic on forum
I think I know where the problem lies.. BuddyPress 1.1 does not need the BPPress integration plugin and it might actually cause problems. So I would advise you to uninstall BuddyPress completely remove buddypress (also remove the BuddyPress tables from the database) and disable and delete the BB integration. Then install BP again and activate the forum component on your BuddyPress admin page.
Let me know if this helps