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Problem with R-2.1.0: install.packages() doesn't work

Manuel Morales <Manuel.A.Morales at williams.edu> writes:
Gnome runs on top of X11, so that's not possible. However, if you're
running remotely, or for some reason lost your DISPLAY setting, you
might not have a connection to X11.

There's a buglet somewhere. AFAICS, we end up calling
chooseCRANmirror() with the default graphics=TRUE, even when
capabilities("X11") is FALSE. Probably easiest to fix inside menu(),
so that it produces the text menu if asked for a graphics menu with
insufficient capabilities.