Hi Don, thank you for your answer. When I launch Process Monitor and try to open the report, no error events are logged. The Report Viewer is part of a forms-authenticated application and there is certainly no issue opening the data table. I think the problem might be when assigning the data table as the data source to the report document; it seems like maybe a connection in the report doc should be cleared or updated somehow, but I'm not sure how to do this (I tried rptDoc.DataSourceConnections.RemoveAt(0) to no avail). Any more hints would be appreciated. Thanks again.
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