As axt had suggested, I tried booting from <<siduction-18.3.0-patience-nox-amd64-201805132159.iso>> but I still just get as far as the siduction branded boot menu. When I choose from the menu to boot either from the cd/dvd/iso or stick/hd I just get a blank window.
My laptop has an i7-1065G7 processor and intel iris plus graphics. I've tried turning off any security features and core hyperthreading in the bios, to no avail.
I'm still wondering if an iso with a more recent kernel might be the answer.
Thanks for any suggestions.
Kent