By default the DataForm starts "Disabled" which means the corresponding Visual State alters the appearance.
If you override the default control template you will find a static resource named "DisabledColor". This is creating the slightly opaque white you are seeing. Just change that and you will be fine.
<SolidColorBrush x:Key="DisabledColor" Color="#A5FFFFFF"/>
markti
2009-05-13 01:16:14