how to use Drupal menu system AND OR I'm trying to display all content labeled under my taxonomy terms with ids 1 and 3. Both terms work fine so that If I point my browser to 
www.mysite/?q=taxonomy/term/1 or www.mysite/?q=taxonomy/term/3

But trying to use drupals built-in AND/OR feature using the urls below gives me a "Page not Found" error.

www.mysite/?q=taxonomy/term/1+3
www.mysite/?q=taxonomy/term/1,3

Any ideas?
thanks
Install the views module and then go to ?q=admin/structure/views.

You will find a disabled view created by default named "Taxonomy term" with an ID equal to taxonomy_term.

Enable this view; it will override the default taxonomy page. Configure the view to match your case, and click save.