[Office Home & Student 2010, Windows 7 Pro, SP1]

Very frequently when I've been working on (or viewing) one of my own documents, and I leave it, I get the prompt:

<Word cannot save or create this file. Make sure that the disc you want to save to is not full, write-protected or damaged.
(C:\Program Files (x86)\...\Normal.dotm)>

This can happen even if the document has been closed unchanged, and when I've viewed or opened a document sent by a third party. It also occurs if I close Outlook, with a prompt to save email.dotm.

The solution is to <ESC> the prompt twice (which leaves a blank screen), and then <ALT+f4> out of it, choosing <Don't Save>.

It's furiously annoying, but I can't find any option to turn the prompt off. Is it perhaps because my templates were first made in earlier versions of Word, and are now incompatible? If so, can I do some form of auto-update, and so stop these nag screens?

GRAEME.