I am experiencing an OOLOCK error when attempting to update packages to my site-library. I have an identical setup on my local Linux machine, but this problem on the remote Linux machine (PPC cluster) started about 3 weeks ago and is present whether I used R-devel or R-2.6.0 or R-2.5.1. Also, of course I manually remove the 00LOCK folder after each failed attempt. Below is my error output, my .Rprofile, and sessionInfo(). Thanks, Mark ERROR: failed to lock directory '/N/hd03/mkimpel/BigRed/R_HOME/site-library' for modifying Try removing '/N/hd03/mkimpel/BigRed/R_HOME/site-library/00LOCK' > sessionInfo() R version 2.7.0 Under development (unstable) (2007-10-07 r43113) powerpc64-unknown-linux-gnu locale: LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] graph_1.15.20 loaded via a namespace (and not attached): [1] cluster_1.11.9 rcompgen_0.1-15 tools_2.5.1 .Rprofile: .libPaths(new= "~/R_HOME/site-library") #tell R where site-library is -- --- Mark W. Kimpel MD ** Neuroinformatics ** Dept. of Psychiatry Indiana University School of Medicine 15032 Hunter Court, Westfield, IN 46074 (317) 490-5129 Work, & Mobile & VoiceMail (317) 663-0513 Home (no voice mail please)