Quite often I find I cannot Paste and almost always I find the
reason to be that I have left a macro running in pause mode. I did however
have one case last week which I couldn't explain. I had copied a picture and
it appeared on the Ofice clipboard (and, evidently, on the Windows
clipboard) - but could not be pasted into any Office app - Paste and Paste
Special were greyed out as options on the edit menu, the right click menu,
and in the office clipboard and ctrl+v didn't work. I could paste it into
Paint, however. I thought it was something to do with the picture itself
(which I was looking at because it was odd) but I have gone back to it and
don't have the problem anymore. I hadn't, and haven't, made any changes to
my Word environment but now you've got me wondering.