Hello, With a fresh install of closure-html (and all dependencies) in LispWorks I am getting the below error (with inlined comments by me). I'm new to closure-html so I'm looking into this, but I figured I'd put this out here in case any one can help, or as a placeholder for a hopeful solution to follow. I also tried this by checking it the git repository with no luck. ;; I assume this is no problem, but thought I would include it for completeness Warning: (defparameter sgml::*simple-catalog*) being redefined in closure-html-2008-11-30\src\parse\html-parser.lisp (previously in closure-html-2008-11-30\src\parse\sgml-dtd.lisp). ;; I see the deflexer dtd call above, which I believe should define this Error: Undefined function sgml::make-dtd-lexer called with arguments (#<stream::latin-1-file-stream closure-html-2008-11-30\resources\dtd\DTD-HTML-4.0-Frameset>). -joerthan