Reply To: Out of Memory message

Sorry for the triplicated message!
But I’ve finally a good news: it was for sure something in the fonts. As I said, I let Font Book deactivate all the extra fonts. Then I added the reliable ones. I left out the most dated, or the one from obscure developers.
At the moment, everything works fine. I’ll add any other fonts, one at a time, and check what they do to the system.
So, InDesign CS6 is continuing to work fine on my High Sierra systems. Thank you for your kind moral and technical support!
Paolo