Error message when you open a Mail Merge document in Microsoft Dynamics CRM 4.0: "Mail_Merge_[Number][1] is a mail merge main document. Word cannot find its data source"

When you open a Mail Merge document within a fully updated Microsoft Office Word 2007 installation in Microsoft Dynamics CRM 4.0, you receive the following error message:

This problem is fixed in the latest cumulative update rollup for Microsoft Dynamics CRM 4.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about the terminology that is used to describe Microsoft software updates, click the following article numbers to view the articles in the Microsoft Knowledge Base: