I have an ArcGIS Viewer for Silverlight (1.0.1). I am able to edit attribute values for a line feature and the editing is saved automatically. But after I edit the shape of the same line feature in the viewer, I can tell the shape is modified in the viewer. But when I reopen the viewer, the shape editing is not saved. By the way, I am able to edit a point feature in the same Viewer and move around with no problem. The editing is saved with the point feature. Can anybody help? Thanks.