Expanding a Datagrid

[gollnick]

If am using an XML document to load a datagrid..

ds.ReadXMl(sb.ToString())
dgXml.DataSource=ds
dgXml.TableStyles.Add ( XmlStyle )
dgXml.Expand(0)

When the grid is loaded it is not "fully open" (see attached image) and I have to click the "item" to fully expand to the final dataset. What am I missing??

Thanks....