I'd like to point out (again?) that catalog files coming with
http://www.tei-c.org/Guidelines2/p4html.tar.gz are still broken. At
least, teicatalog.xml and catalog.tei are affected. Entries are listed
again and again and teicatalog.xml isn't a well formed XML file
(elements are not properly nested).
In http://www.tei-c.org/P4X/ST.html you start the example file as
<!DOCTYPE TEI.2 PUBLIC "-//TEI P4//DTD Main Document Type//EN"
But in the catalog file you say: "DTD Main DTD Driver File":
<public publicId="-//TEI P4//DTD Main DTD Driver File//EN"
It might be a good idea to add "DTD Main Document Type" as well to the