Hi, mi question is for how to install tkrplot, i like to load him but i' failed (i see "first.lib Failed") because he said not exist the file tkrplot.dll but i download the tkrplot.zip and i unzip him in the file c:\R\1071\library\libs\tkrplot.dll (R 1.7.1), what i do to make for the R encounter the .dll file? thanks Ruben