>I have set the Data Environment properties for Database and DataSource and yet, the messgae keeps coming up that it cannot find the SysUsers.dbf table in the QC.DBC database. However, in the dialog, you can see the table, so I select the table and the program continues on as if nothing were wrong.
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>Is this a VFP 9.0 bug, or what?

It is not a bug, your program just doesn't see this table opened for some reason. Check SET TABLEPROMPT option in Help.

You may check Re: Avoid open file dialog Thread #1135915 Message #1135916