Hello ... Thanks to Stefano Iacus, a Macintosh package bundle has been built for Bioconductor 1.1. Users who wish to obtain packages this way can either follow the link off of the package download page (http://www.bioconductor.org/repository/release1.1/package/html/index.html), or directly from CRAN: (http://cran.r-project.org/bin/macos/contrib/rm161/Bioconductor_1.1.sit). -Jeff