Thanks for those. I've followed the instructions faithfully. It's odd; sometimes it works, sometimes it doesn't. Sometimes the Paste facility stays stubbornly disabled. Worst is trying to paste into a new document, when it seems to be sheer luck whether it will let me do it or not.
I write for a living, so this is a major headache. Why do Microsoft et al
have to tinker with every last element of their programmes and always end up changing them (pointlessly!) just when we drones have got used to the previous version??
