[R] x11() hangs in 3.2.1

[Steven Backus]

I'm on RHEL 6.6, R version 3.2.1 Patched (2015-07-30 r68761) --
"World-Famous Astronaut".  Issuing the x11() command hangs R and
does not complete.  A window is partially drawn then freezes.
Does anyone know of a solution?

Thanks,
  Steve
-- 
Steven J. Backus                        Computer Systems Manager
University of Utah                      E-Mail:  steven.backus at utah.edu
Genetic Epidemiology                    Alternate:  backus at math.utah.edu
391 Chipeta Way -- Suite D              Office:  801.587.9308
Salt Lake City, UT 84108-1266           http://www.math.utah.edu/~backus