


R-help, I recently updated R from 2.13.0 to 2.13.1 (32-bit Windows version) and now have a problem updating packages.  I am running Windows 7 as operating system.  As the FAQ suggests, I uninstalled 2.13.0 before installing 2.13.1.  On first opening R, I ran "update.packages(checkBuilt=TRUE, ask=FALSE) ras also recommended and selected the NS Cran mirror.  On doing this the following error messages occurs: update.packages(checkBuilt=TRUE, ask=FALSE)
--- Please select a CRAN mirror for use in this session ---
Warning in install.packages(update[instlib == l, "Package"], l, contriburl = contriburl,  :
  'lib = "C:/Program Files/R/R-2.13.1/library"' is not writable
Error in install.packages(update[instlib == l, "Package"], l, contriburl = contriburl,  : 
  unable to install packages   Any suggestions as to how to correct this problem would be appreciated.  Thanks. Regards,Deelman
 		 	   		  
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