The link for "More Info" under the GNUPlot info page: http://search.cpan.org/doc/CAIDAPERL/Chart-Graph-2.0/Graph/Gnuplot.pm leads to an ad for a page that is for sale. Joseph A. Calandrino Geophysical Software Developer Center for Monitoring Research, SAIC 1300 North 17th Street, Suite 1450 Arlington, Virginia 22209 Phone: 703.247.1888 Email: calandri@cmr.gov