'The field name is not known' error when upgrading from 8.5 to XI

<p>I&#39;m getting a &#39;The field name is not known&#39; error when using the Crystal viewer (executing the ViewReport method) when I upgraded from Crystal 8.5 to Crystal IX. I have a feeling the problem stems from a boolean that exists in the recordset that I am using in a formula to supress printing. Does anyone know if there is some registry setting that will resolve my issue? If not, does anyone know how to resolve this?</p><p> Thanks in advance,</p><p>Karen Rice</p>