[@potter_system Member 18 years, 5 months ago]

Copying from this post, by mdawaffe

mod_rewrite:

bbPress can generate a sample .htaccess file for you if you log in and browse to bb-admin/rewrite-rules.php. Copy the output and save it into your .htaccess file. Alternatively, you might be able to forgo the rewrite rules and instead set Options +MultiViews