Thank you for your further reply.
The problem can be seen clearly by the following demonstration.
Open a file in Excel and do not change anything in it.
Click on the File tab then Save As. Do not change the filename, simply click on the save button in the Save As box.
A warning box will be displayed with title Confirm Save As, a question and options yes or no.
This also happens in Powerpoint and is correct behaviour.
If you now try the same sequence in Word it doesn’t work, the Save As simply works as Save without giving you the warning, ie it overwrites immediately.
I would have expected Microsoft to have wanted consistency of warning displays at this level (ie file saving) throughout Office
for obvious reasons. In old versions of Office this consistency was evident and Word, Excel and Powerpoint all operated in the same way with the same warning boxes displayed for
the same sequence of commands.
I have asked a couple of colleagues if their 2007 and 2010 installations give the same result as mine.
They do, so my guess is that the Microsoft people missed this when they made the major changes resulting in the 2007 and subsequent versions of the Office applications.
Even if they know about it they probably consider it too minor to bother with a patch.
It’s not the end of the World if it doesn’t work and I don’t really want to start trying to write something to make it work;
but it is an irritant and does mean there is no second chance to rename a file in these circumstances.