Pan stoped working

[BrianGustafson]

In my map I can nolonger pan around or hold shift and zoom in.  I can however zoom in using the mouse wheel or prgramatically move the map.  Any ideas why this went away? 

<esri:Map x:Name="MyMap" MinimumResolution="0.0000000001" Canvas.Left="550" Canvas.Top="20" Width="920" Height="800" Extent="-115.1449, 33.2983, -95.02816, 43.163" IsLogoVisible="False">
                            <esri:Map.Layers>
                                <esri:ArcGISTiledMapServiceLayer ID="BaseMapLayer"
                                    Url="http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_Imagery_World_2D/MapServer"/>
                                <esri:ArcGISDynamicMapServiceLayer ID="MyServiceLayer"
                                    Url="http://arcgisp/ArcGIS/rest/services/Tri-State_GIS_Viewer/MapServer"/>
                            </esri:Map.Layers>
                        </esri:Map>

[DominiqueBroux]

Look at sample here: http://resources.esri.com/arcgisserver/apis/silverlight/index.cfm?fa=codeGalleryDetails&scriptID=169...

and discussion here: http://forums.arcgis.com/threads/5285-Map-can-t-be-dragged-in-the-ListBox