We are getting an intermittent error from one of our sites. The exception message is: "Index was out of range. Must be non-negative and less than the size of the collection." The Stack trace is: at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource) at System.ThrowHelper.ThrowArgumentOutOfRangeException() at EPiServer.Web.Hosting.VirtualPathVersioningProvider.GetFileVersion(String virtualPath, AccessLevel accessLevel) at EPiServer.Web.Hosting.VirtualPathVersioningProvider.GetFile(String virtualPath) at EPiServer.Web.Hosting.VirtualPathVersioningProvider.GetFile(String virtualPath) at EPiServer.Web.Hosting.VirtualPathVersioningProvider.GetFile(String virtualPath) at EPiServer.Web.StaticFileHandler.ProcessRequestInternal(HttpContext context) at EPiServer.Web.StaticFileHandler.BeginProcessRequest(HttpContext context, AsyncCallback callback, Object state) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) The site is a little odd as we have two web servers that are load balanced, they share a single VPP folder, shared off one of the servers. The errors seam to come mainly from the server which is accessing the VPP folder over the network. Anyone have any ideas? Thanks, Jim.