Clipman's latest version is dated 2006, so probably predates most of the software on my PC.
The "Office" one doesn't look like the solution - I have no problem copying and pasting between bits of Office.
I didn't knowingly change anything - I just noticed one day that copy - open Word - paste didn't work.
Off now to have a look for "clipboard" settings in dark corners...
It'll take longer to fix than I'll ever spend going back and recopying after I've opened Word, but I don't like silly bugs.