Hi Lucy, It appears that the lattice package is no longer installed on the ice machines. As a short term fix you can issue: install.packages("lattice", lib="~") at the R command prompt to install the lattice package in your home directory. You will only have to do this once. Once this is installed you can load the local copy of the lattice library using: library(lattice, lib.loc="~") at the R command prompt. We'll also get the FAS folks to install lattice globally. Hope this helps. Best, Kevin ------------------------------------------------------ Kevin Quinn Assistant Professor Department of Government and Center for Basic Research in the Social Sciences 34 Kirkland Street Harvard University Cambridge, MA 02138 On Wed, 1 Dec 2004, Lucy Clare Barnes wrote: