>Seems that creating datasets manually is OK when passing them on to Crystal .NET, but isn't totally reliable when passing them on to something like V10.

And your workaround is? You're not really creating a dataset manually, you were simply adding a column or two in the XSD designer. Why would that be any different than however you created the .xsd to begin with? I don't really see why CR is balking at this, so I don't know if you've actually solved your problem. <g>

~~Bonnie