Hi, Since R 2.13.0 the stylesheet R.css is installed a per-package basis, and I wish that package developers could be allowed to put a customized R.css in their packages. Thanks! Regards, Yihui -- Yihui Xie <xieyihui at gmail.com> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA