On my Mac (Snow Leopard and R64), I had been using Rcmdr nicely. But now when I do > library(Rcmdr) the tk libraries load, but the Rcmdr window never appears. > library(Rcmdr) Loading required package: tcltk Loading Tcl/Tk interface ... > And if I try to do anything else, R goes to 100% cpu and hangs. How do I recover? Thanks, Jim Rome