I have installed Umbraco v6.1.6 on a Windows Server 2008 box running IIS 7.5. My app pool is running in Integrated Mode but when I try to access Umbraco I see the following error:

ERROR System.Exception - [Thread 25] Exception of type 'System.Web.HttpUnhandledException' was thrown.
System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.Web.HttpException (0x80004005): Error executing child request for umbraco.aspx. ---> System.Web.HttpException (0x80004005): No http handler was found for request type 'GET'
   at System.Web.HttpApplication.MapIntegratedHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig, Boolean convertNativeStaticFileModule)
   at System.Web.HttpServerUtility.Execute(String path, TextWriter writer, Boolean preserveForm)
   at System.Web.HttpServerUtility.Execute(String path, TextWriter writer, Boolean preserveForm)
   at System.Web.HttpServerUtility.Transfer(String path)
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

If I run the app pool in Classic mode then I can access Umbraco without any issues. Also, we have a load balanced environment pointing to a single fileshare.

Anyone else experienced this?

Thanks