Hello,
Could you please submit this issue to our developer support so that we can take a closer look as to what is happening? If you have a sample that demonstrates the issue, please submit it with your support request. From the link below click on "Ask For Help".
http://www.infragistics.com/gethelp/
Thanks,
Taz .
Product Manager, Web Clients
Microsoft - MCP
Infragistics, Inc
Product Help : http://www.infragistics.com/gethelp
Feature Request : http://devcenter.infragistics.com/Protected/RequestFeature.aspx