[R] Copying from graphics window in OS X

[Chris Wiita]

I'm running R from an Xterm window is OSX-Tiger.  Graphical windows 
appear as they should, but I'm having trouble copying from them--using 
cmd+c or the Copy option in the Edit menu won't place the graph in the 
clipboard (when I paste into a running OS X app, I get whatever was the 
last copied thing from a non-x11 window).  Any ideas on how to copy from 
a xterm-launched graphical window?  I can copy/paste into and out of the 
xterm command line, but I can't get anything from a graphical window.

Thanks!