Error: An unknown error occurred during the request. - when previewing query results in Internet Explorer

 This error occurs when previewing query results in Internet Explorer:

"Error: An unknown error occurred during the request.  This could indicate a request to an invalid endpoint or a problem with the web server configuration."

Download and install the latest service pack, which contains all fixes from previous service packs. If you are running an older version, download and install the latest version and then the service pack. 

Environment

 Blackbaud CRM
 4.0
 4.0
 4.0.141.12 (Service Pack 3)
 Version 4.0

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