[R-SIG-Mac] rgl window problem

[roger koenker]

I've recently installed rgl on a:

R version 2.5.0 Under development (unstable) (2006-09-10 r39242)
powerpc-apple-darwin8.7.0

system, from source and everything seemed to be ok, the package
loads without complaints, however  trying to run any of the examples
produces the usual window, but no plotting occurs.  The window
is blank, and moving the cursor over the window gives the dreaded
spinning pinwheel of cluelessness.

Can anyone suggest a strategy for further diagnosis?
Thanks,
Roger

url:    www.econ.uiuc.edu/~roger            Roger Koenker
email    rkoenker at uiuc.edu            Department of Economics
vox:     217-333-4558                University of Illinois
fax:       217-244-6678                Champaign, IL 61820