I reloaded the older version of R (3.3.3), ran Rcmdr and the problem disappeared. I downloaded R 3.4.0 again and the problem with Rcmdr reappeared.
I read a previous post on the list regarding an issue with Rcmdr and followed your suggestions to that posting:
1. The following test went well with R 3.4.0:
library (tcltk)
tk_messageBox(message="test")
2. Ran R 3.4.0 from the terminal, and then ran R Commander. The problem persists.
I am running XQuartz 2.7.11. My machine is an iMac (27-inch, Late 2012); Processor 3.4 GHz Intel Core i7, with 32 GB RAM. Graphics: NVIDIA GeForce GTX 675MX 1024 MB. OS X Sierra 10.12.4.
I will appreciate any suggestions.
Thanks in advance.
Jos?
Jos? G. Conde, MD, MPH
Professor, School of Medicine
Director, CentIT2
UPR Medical Sciences Campus
Tel (787) 763-9401 Fax (787) 758-5206
Email: jose.conde1 at upr.edu
URL: http://rcmi.rcm.upr.edu