Any ideas?

AssemblyVersion: 5.5.1
PortalID: 0
PortalName: -
UserID: 6
UserName: max
ActiveTabID: 36
ActiveTabName: Home
RawURL: /DesktopModules/activeforums/cb.aspx
AbsoluteURL: /DesktopModules/activeforums/cb.aspx
AbsoluteURLReferrer: http://www.avtotravel.com/tabid/65/...fault.aspx
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.1; ru; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12 ( .NET CLR 3.5.30729) WebMoney Advisor
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: a21222f6-bb64-4680-b520-793df166a686
InnerException: The file '/DesktopModules/activeforums/cb.aspx' does not exist.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.UI.Util.CheckVirtualFileExists
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: The file '/DesktopModules/activeforums/cb.aspx' does not exist. ---> System.Web.HttpException: The file '/DesktopModules/activeforums/cb.aspx' does not exist. at System.Web.UI.Util.CheckVirtualFileExists(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) at System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) at System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) at System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace ---
Source:
Server Name:

Did you get any error messages during the installation? Try reinstalling it if you are not sure.

Unfortunate side effect of trying to keep an install clean. That file is no longer necessary so AF 4.3 removed it. What you are seeing is hits from users that were still logged in while the upgrade took place. It will correct itself and the only problem is the extra entries in the event log.

No.Thanks