I’m sorry, but I had forgotten the other serious issue I had, which was on my Mac. When I open up my files in the editor nothing is visible - it is just blank.
This seems to be an ongoing issue as well. However, I did manage to do the ‘right-click’ thing on the Mac and it looks good, so if I can fix the ‘blank page’ issue, I can at least use JupyterLab on my Mac.
Any ideas about how to fix the ‘blank page’ issue?
Regarding my unix machine, I realised I was using an old ‘Beta’ version of JupyterLab, even though I had done a standard installation with
pip install jupyterlab
(I don’t know why it didn’t install the latest version and I could not get it to upgrade - it just says it is up to date).
Thanks again for your help!