This showed up in my 6/11/2013 Windows Phone Dashboard crash report, and has since showed up 4 more times up to 6/15/2013:

Frame Image Function ​ ​ Offset
0 system_xml_ni System.Xml.XmlTextReaderImpl.Throw ​ ​ 0x00000036
1 system_xml_ni System.Xml.XmlTextReaderImpl.ParseDoctypeDecl ​ ​ 0x0000008e
2 system_xml_ni System.Xml.XmlTextReaderImpl.ParseDocumentContent ​ ​ 0x00000192
3 system_xml_ni System.Xml.XmlTextReaderImpl.Read ​ ​ 0x0000008e
4 system_xml_ni System.Xml.XmlReader.ReadToFollowing ​ ​ 0x0000006c
5 inneractive_ad_ni Inneractive.Ad.InneractiveAdControl.ParseCPDXml ​ ​ 0x00000050
6 inneractive_ad_ni Inneractive.Ad.InneractiveAdControl.webClient_Uplo​adStringCompleted ​ 0x0000006a
7 system_net_ni System.Net.WebClient.OnUploadStringCompleted ​ ​ 0x00000010
8 system_net_ni System.Net.WebClient.UploadStringOperationComplete​d ​ 0x00000034

I believe I followed the instructions correctly, which were simple, and I'm not sure what I may have done to cause this.

Has anyone else seen this? Is it an internal problem with the ad control? I'd like to ask that last question to the NAX developers, but I'm not sure how to contact them, so that's another question.

Thanks.
Sal