I am currently developing a site using version 5.5 in Visual Studio 2008 and I am needing to add sql reporting services to the site. We are using SQL Server 2008 as the data repository for the report data and are trying the add the Microsoft Report Viewer version 10. When we add the report viewer to a regular aspx page outside of the Kentico cms tree the report viewer displays correctly. When we add the report viewer to a page in the CMS tree (with nothing else on the page using a master page) that inherits from TemplatePage the follwoing error is displayed:

The type 'Microsoft.Reporting.WebForms.ReportViewer' exists in both 'c:\WINDOWS\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\9.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' and 'c:\WINDOWS\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\10.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll'

Their are no references to version 9 any where in the code or the webconfig. It is in the GAC and it cannot be removed due to dependencies. Is there anyplace in the heirarchy that references the version 9?