On an old installation there are a lot of validation errors due to most of the editor/body properties being LongStrings instead of XhtmlString. Instead of changing every one manually on every page type, would it be stupid changing them all at once in the DB by changing the relevant fkPageDefinitionTypeID in tblPageDefinition with an SQL query? Am I wrong when I assume that the actual property data will be "unharmed" and that the next time they publish the various pages, the tags will be fixed automatically?