dear Readers, i had created many rest services in decimal degrees and coveniently consumed them in silverlight applications. Strangely, all esri examples for ESRI have decimal degrees for the extent. i created an .mxd with highways and imagery for SC (utm zome 17). i created a arcgis service and ensured it had a REST end point to be consumed in a sl application. i did not provide a value for 'Extent' attribute in <esri:Map tag in XAML and could not see anything. then i clicked the export link in the rest services information - i was able to see my map on a web browser and saw some extents. i entered those values in meters for the 'Extent' attribute in <esri:Map and still coudl not see anything. on the forums, i saw Morten's suggestion in this page: http://forums.esri.com/Thread.asp?c=158&f=2455&t=292559&mc=5#911984 and tried the json? suggestion. i got an error as follows: { "error" : { "code" : 500, "message" : "Server Error - Object reference not set to an instance of an object.", "details" : [] }} any help will be appreciated. regards Ravi.