Hello, I'm running R 2.8.1 on Ubuntu Hardy. I'm trying to install tkrplot. Using r-cran-tkrplot from the repository, I'm getting the following error: > library(tkrplot) Loading required package: tcltk Loading Tcl/Tk interface ... done Error in structure(.External("dotTcl", ..., PACKAGE = "tcltk"), class = "tclObj") : [tcl] version conflict for package "Tcl": have 8.5.0, need exactly 8.4. Error in library(tkrplot) : .First.lib failed for 'tkrplot' This tries to install tkrplot version 0.0.16 However, installing R2.8.1 from the repositories automatically installs tcl8.5. In fact, if I try and remove tcl8.5 using synaptic, it also removes R. I also tried to install the package from source, both by using install.packages as well as downloading source (tkrplot 0.0.18). This fails to install. Can someone please help. My ultimate objective is to use the TeachingDemos package. > sessionInfo() R version 2.8.1 (2008-12-22) i486-pc-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=C;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] tcltk stats graphics grDevices utils datasets methods [8] base Thanks. Abhijit