A bug in the AdDuplex Silverlight control version 1.1.1 has been reported. It manifested itself as an exception thrown when AdDuplex control was used on several pages throughout the app. I’m sorry for the inconvenience and trouble it may have caused you.
This bug should be fixed in the new version which is now available for download through the client area.
Thank you to everyone who reported this bug and please accept my sincere apologies. In case you find any issues with the controls, please, don’t hesitate to email me or leave a comment on this blog.