[R-SIG-Mac] Looking for help - demo() hangs R.app on 10.15.6

[Michael Feher]

Hello!  I am a brand-new useR and have installed R-4.0.2.pkg and XQuartz on my macOS 10.15.6.  The R GUI launches fine, but when I type 'demo()', the application hangs (even with XQuartz running).  However, I can run from the CLI in my XQuartz window just fine.  Where can I go to get help to get up and running? Thank you.

Mike