This is a different issue, and one that I am unable to reproduce. If I
start PUTTY with X11 forwarding and no X server, I get the usual message
from X11().
As I understand it, when running available.packages() you are getting a
call to the tcltk version of chooseCRANmirror(). Again that work
The issue is the pushback on text files (which readChar does not use).
I've altered the logic in 2.7.2 patched so that seek() clears the
pushback.
NB:
1) Your code is incomplete (you need library(MASS)),
2) You are asked not to report on obsolete versions of R.
On Sat, 30 Aug 2008, [EMAIL PROT