generated javascript error bobj.crv.stateManager.setComponentState

I'm unable to open reports in my Visual Studio 2010 project.  When loading the report, the code breaks on the following line of generated javascript:

error:bobj.crv.stateManager.setComponentState('ctl00_ContentPlaceHolder_PageBody_CrystalReportViewer_WarrantRequest__UI',eval('('+document.getElementById('__CRYSTALSTATEctl00$ContentPlaceHolder_PageBody$CrystalReportViewer_WarrantRequest').value+')'));

I'm using runtime engine Version 13.0.2000.0.  I have set web.config according to the directions in the developer guide and on this blog:

<configSections>

    <sectionGroup name="businessObjects">

      <sectionGroup name="crystalReports">

        <section name="printControl" type="System.Configuration.NameValueSectionHandler"/>

        <section name="crystalReportViewer" type="System.Configuration.NameValueSectionHandler"/>

        <section name="rptBuildProvider" type="CrystalDecisions.Shared.RptBuildProviderHandler, CrystalDecisions.Shared, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304, Custom=null" />

        <!--<section name="rptBuildProvider" type="System.Configuration.NameValueSectionHandler"/>-->

      </sectionGroup>

    </sectionGroup>

    <sectionGroup name="crystalDecisions">

      <section name="serverFileReportManager" type="System.Configuration.NameValueSectionHandler"/>

    </sectionGroup>

  </configSections>

  <businessObjects>

    <crystalReports>

      <crystalReportViewer>

        <add key="documentView" value="weblayout"/>

        <add key="EnableTextClipping" value="true"/>

        <add key="maxNumberListOfValues" value="50"/>

        <add key="UseBrowserLocale" value="true"/>

        <add key="ResourceUri" value="~/crystalreportviewers13" />

             <!--<add key="resourceURI" value="C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETClientFiles\crystalreportviewers13"/>-->

      </crystalReportViewer>

      <rptBuildProvider>

        <add embedRptInResource="true" />

      </rptBuildProvider>

    </crystalReports>

  </businessObjects>

  <crystalDecisions>

    <serverFileReportManager>

      <add key="rootDirectory" value="c:\inetpub\wwwroot"/>

    </serverFileReportManager>

  </crystalDecisions>

I added the crystalreportviewers13 folder to the project under aspnet_client / system_web / 4_0_30319 / crystalreportviewers13.  (This was done automatically when I installed the runtime engine.)

I am running in Windows7 . .NET Framework 4. The build is for AnyCPU.

Thanks for any assistance!