[R] problem with up arrow

[a j]

Hi,

I just compiled R on solaris.

Everything seems to run fine.  

Except, the up and down arrows don't take me
through the history.  See:

=======================================================
~/R-2.0.1/bin: R

R : Copyright 2004, The R Foundation for Statistical Computing
Version 2.0.1  (2004-11-15), ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for a HTML browser interface to help.
Type 'q()' to quit R.

> x=c(2,3,4)
> ^[[A
Error: syntax error
> ^[[B
Error: syntax error
> 
=======================================================

The ^[[A is my up arrow keypress
and the ^[[B is my down arrow keypress.


How can I get these arrows to take me through history?