I've become an avid user of Sweave and would like to able to use other fonts but when I added the following lines to a sweave file, \renewcommand{\familydefault}{cmss} \renewcommand{\rmdefault}{cmss} \renewcommand{\sfdefault}{cmr} \normalfont\normalsize the pdf file generated with pdflatex the text for the sections that aren't generated by sweave (all the "non-chunks") have that "jaggedy" look when displayed in acrobat reader. When I print the document, the text looks fine. I'm using, C:\st521\homework\hw1>pdflatex -version MiKTeX-pdfTeX 2.3.1222 (1.10b) (MiKTeX 2.3) Copyright (C) 1982 D. E. Knuth, (C) 1996-2002 Han The Thanh TeX is a trademark of the American Mathematical Society. and don't know if this is a sweave problem, MiKTeX problem, or something else. Any ideas? Thanks, Jeff. --- Jeff D. Hamann Forest Informatics, Inc. PO Box 1421 Corvallis, Oregon USA 97339-1421 541-754-1428 jeff.hamann at forestinformatics.com www.forestinformatics.com