Security sandbox violation problem in as3

Hi all…

When i am running my file locally it runs well but when it runs from a server, it throws an error

Error #2044: Unhandled securityError:. text=Error #2048: Security sandbox violation: http://br-pc-353:3333/_Layouts/ChannelStaffing/Flash/prometrics_main.swf cannot load data from http://br-pc-353.proctor-test.com/Prometric.ChannelServices/Channel_TrainingService.svc/GetUserTrainingDetails/DC864D23-14C1-480E-AA42-D4221B3EE9EA.
at scripts::mainScreenClass/gettingDetails()
at scripts::mainScreenClass/show()
at scripts::main/frame6()
at flash.display::MovieClip/gotoAndPlay()
at scripts::dataMasterClass/onXMLComplete()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()

I googled a lot. I found a solution of cross domain policy funda but i am not clear with it. Anybody has ideas of getting rid of this problem…?

Thanks
Nikhil…