I am creating directory in Word 2003 by mailmerge using as the data source a
query in an Access database (prepared in Access 2003 but in 2000 format) .
When I attempt to browse to the data source I find that every table and query
is listed except the one I want.

Approaching the problem via Tools Office Links etc in Access, the required
query is listed but draws the response " Can not open data source".

The only exceptional feature of the query i can see is that it contains a
number of calculated fields.