[R] tcltk problem

[Liviu M Vladutu]

Hi all,
I have R Version 2.1.0 installed on a box running Redhat Fedora Core 2.
When I try:
library()
it shows the package tcltk.

But if I try:
library(tcltk) I get the same error message like in this thread:
http://tolstoy.newcastle.edu.au/R/help/01c/3418.html

The same, tcl and tk are installed in /usr/lib; if I try:
capabilities("tcltk")

I get:
tcltk
FALSE

I cant' find tcltk.so
Any suggestions please?
Thx in advance and Merry Xmas!
Liviu