I'm writing to this list rather than the Mac one, b/c I don't know if this problem is particular to the OS. I recently moved to 2.10 under Snow Leopard: R version 2.10.0 (2009-10-26) x86_64-apple-darwin9.8.0 locale: [1] C/C/en_US/C/C/C attached base packages: [1] stats graphics grDevices datasets utils methods base other attached packages: [1] JGR_1.7-0 iplots_1.1-3 JavaGD_0.5-2 rJava_0.8-1 loaded via a namespace (and not attached): [1] Matrix_0.999375-32 grid_2.10.0 lattice_0.17-26 lme4_0.999375-32 [5] tools_2.10.0 I also installed a number of Task Views since the version change. Now if I issue update.packages() after having updated packages once before, R doesn't remember, and repeatedly wants to update the following packages (this is true also if I quit R and restart after the update, or if I reinstall MASS and then update.packages()): MASS : Version 7.2-48 installed in /Library/Frameworks/R.framework/Resources/library Version 7.3-3 available at http://cran.r-project.org Update (y/N/c)? y class : Version 7.2-48 installed in /Library/Frameworks/R.framework/Resources/library Version 7.3-1 available at http://cran.r-project.org Update (y/N/c)? y nnet : Version 7.2-48 installed in /Library/Frameworks/R.framework/Resources/library Version 7.3-1 available at http://cran.r-project.org Update (y/N/c)? y spatial : Version 7.2-48 installed in /Library/Frameworks/R.framework/Resources/library Version 7.3-1 available at http://cran.r-project.org Update (y/N/c)? y trying URL 'http://cran.r-project.org/bin/macosx/leopard/contrib/2.10/VR_7.2-48.tgz' Content type 'application/x-gzip' length 1096240 bytes (1.0 Mb) opened URL =================================================downloaded 1.0 Mb The downloaded packages are in /var/folders/TG/TG6nWu2pHYCI-BdWWiyMxU+++TI/-Tmp-//RtmpZx3zu8/downloaded_packages _____________________________ Professor Michael Kubovy University of Virginia Department of Psychology USPS: P.O.Box 400400 Charlottesville, VA 22904-4400 Parcels: Room 102 Gilmer Hall McCormick Road Charlottesville, VA 22903 Office: B011 +1-434-982-4729 Lab: B019 +1-434-982-4751 Fax: +1-434-982-4766 WWW: http://www.people.virginia.edu/~mk9y/