Paul - many thanks for your help.

I hadn't tried that - but I have now and unfortunately it makes no difference.

The response from Excel is "Document not saved" and from Word it's "The export failed due to an unexpected error."

No other indication of what the problem might be and nothing in the Event Logs.

Why do these niggles always bite you just when things are at their most stressful!! :-)

It was working fine a week ago!

Roy