[Doug Robbins - Word MVP]

Change the document back to a normal Word document and then change it back
to a mail merge main document and try re-attaching the data source. It will
be easier to do this if you turn on the display of the mail merge toolbar by
selecting that item after selecting Toolbars from the View menu.

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Hope this helps.

Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.

Doug Robbins - Word MVP

"Michelle" wrote in message
...
We have a Word 2003 mail merge document which we merge with data in a Word
2003 table.
It worked fine when we were in Office 2003, but now that we have upgraded
to
Office 2007, we get an error saying
"ED798FBB is a mail merge document. Word cannot find its data source,
H:/xxx.doc" and gives us the option to select the "Find Data Source"
button.
When we browse for the data source, it comes up with the same message
"ED798FBB is a mail merge document. Word cannot find its data source,
H:/xxx.doc". (Don't know what the EDB798FBB refers to as it is not the
name
of the document).

We have experienced this same problem with a different document before.
Any help appreciated.
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Michelle