[Rd] No window graphics on new binary installation for Mac OS 10.3 (PR#7427)

[wcleveland at pobox.com]

I loaded the binary  for R, and most things work fine.  The plot 
command defaults to a postscript file.  If I type X11(), I get a 
message the X11 failed to load.  However if I type 
capabilities(what="X11") I get TRUE back.

What do I need to do to get X11 to load properly or to get screen plots?

Bill Cleveland