map service delay on open

[PeterHoffman]

I have an application on a 10.1 server using sdk 4.6 and api 3.0. Sometimes the map does not show upon inital opening of the application. It is not consistent and I cannot repeat this problem at will.
Any ideas? It display fine in rest services url.

[RhettZufelt]

If anyone happen to have fiddler etc open at the time this happens, please share the problem URL request - and response.

In case it helps.

SecurityError: Error #2048: Security sandbox violation: http://gis01.wch-rcc.com/stock31/index.swf cannot load data from http://services.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer?f=json.
 at com.esri.ags.tasks::BaseTask/handleFaultEvent()
 at mx.rpc::AsyncResponder/fault()
 at mx.rpc::AsyncToken/http://www.adobe.com/2006/flex/mx/internal::applyFault()
 at mx.rpc.events::FaultEvent/http://www.adobe.com/2006/flex/mx/internal::callTokenResponders()
 at HTTPOperation/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()
 at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::faultHandler()
 at mx.rpc::Responder/fault()
 at mx.rpc::AsyncRequest/fault()
 at DirectHTTPMessageResponder/securityErrorHandler()
 at flash.events::EventDispatcher/dispatchEventFunction()
 at flash.events::EventDispatcher/dispatchEvent()
 at flash.net::URLLoader/redirectEvent()

fiddler2 file attached