Hi Britgirl.
I wrote to NoMachine support, and they wanted some logs, meanwhile i found the same article you have linked to,
and they also wanted me to make custom desktop sessions with ‘startxfce4′ so that gave the hint, and now it’s working.
But also pointed out in the support ticket, it’s stange it’s now working withe the default “DefaultDesktopCommand “/etc/X11/Xsession default”” like on our old Terminal server.
Thank you for the help.
/Thomas