I created a functional site using single user WP and BP with the “BP columns 1.2 theme.” After switching to multiuser, the root site still works fine, but if you click on “activity,” “members,” “groups,” “forums,” “blogs,” or “login/register” from a new blog, it says “Page Not Found.” This remains true when using either the BP columns theme or the default BP theme on new blogs. Also, the header is overridden by the header from the root blog on new blogs using those themes.
Any idea why this might be? Thanks