Hello Andrew,
Thank you for your post. I have been looking into it and it seems to be the same as your other post: http://www.infragistics.com/community/forums/p/88942/441057.aspx#441057, to which I have already replied.
Please let me know if you need any further assistance on the matter.
Sincerely,
Krasimir, MCPD
Developer Support Supervisor - XAML
Infragistics
www.infragistics.com/support