I've got a similar problem.  I'm using SQL Server 2000 and Visual Studio 2008 with it's bundled version of Crystal Reports.  I had a report populated by a stored procedure, but changed the stored procedure to use dynamic SQL (only for selection criteria, not for column names).  I can now preview the report from the .rpt tab with no errors, but when the report runs, as soon as the CR viewer loads, I get a pop-up Query Engine Error: '42S02... Invalid object name '.report_vw'  (which is prepended in code with a dynamic database name) Failed to open a rowset.  After clicking OK and putting in the parameters, the report still runs fine.  Any idea how to avoid the pop-up?  Thanks.