umbraco v4.0.41, iis7 (.net 2.0 integrated pipeline), .net 3.5, win2008

i dont know what changed, but suddenly i can't save templates using the backend editor.

in firebug i noticed that i get 404 error on several files:

http://www.mydomain.com/ScriptResource.axd?d=32nHByWnJ2gk2dzV4a2qnkSdXHgV7G05ass_ZX0imxc1w4AjK9Hk84vfinDeb-mvtUVI-Dn5FufOq3y0L7yIFbozg15e90hyNU-Kje3GUdevCFYYfgRd64p08qZRNRn9jm7TENH7fWIXqaz39rBL2GAmQx01&t=78f6f5b7

and also error when trying to load some js:

Sys is not defined - Sys.Application.initialize();

umbraco is not defined -  mbraco.presentation.webse...val(), submitSucces, submitFailure);

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="urlrewritingnet" restartOnExternalChanges="true" requirePermission="false" type="UrlRewritingNet.Configuration.UrlRewriteSection, UrlRewritingNet.UrlRewriter" />

    <!-- ASPNETAJAX -->
    <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
        <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
        <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
          <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" />
          <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
          <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
          <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
        </sectionGroup>
      </sectionGroup>
    </sectionGroup>

    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <section name="umbraco.presentation.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </sectionGroup>
  </configSections>

  <urlrewritingnet configSource="config\UrlRewriting.config" />

  <appSettings>
    <add key="umbracoDbDSN" value="server=99.99.99.99,1533;database=umbraco.db;user id=user;password=123456" />
    <add key="umbracoConfigurationStatus" value="4.0.4.1" />
    <add key="umbracoReservedUrls" value="/config/splashes/booting.aspx,/install/default.aspx,/config/splashes/noNodes.aspx" />
    <add key="umbracoReservedPaths" value="/umbraco,/install/" />
    <add key="umbracoContentXML" value="/data/umbraco.config" />
    <add key="umbracoStorageDirectory" value="/data" />
    <add key="umbracoPath" value="/umbraco" />
    <add key="umbracoEnableStat" value="false" />
    <add key="umbracoHideTopLevelNodeFromPath" value="true" />
    <add key="umbracoEditXhtmlMode" value="true" />
    <add key="umbracoUseDirectoryUrls" value="true" />
    <add key="umbracoDebugMode" value="false" />
    <add key="umbracoTimeOutInMinutes" value="20" />
    <add key="umbracoVersionCheckPeriod" value="7" />
    <add key="umbracoDisableXsltExtensions" value="true" />
    <add key="umbracoDefaultUILanguage" value="en" />
    <add key="umbracoProfileUrl" value="profiler" />
    <add key="umbracoUseSSL" value="false" />
    <add key="umbracoUseMediumTrust" value="false" />
    <add key="GoogleAnalytics.Email" value="eransharv" />
    <add key="GoogleAnalytics.Passwd" value="rs87362c" />
    <add key="MailChimp4Umbraco.APIKey" value="xxxxx75714d82bc-us1" />
  </appSettings>

  <system.net>
    <mailSettings>
      <smtp>
       <network host="smtp.gmail.com" port="587" userName="[email protected]" password="1234" defaultCredentials="false" />
      </smtp>
    </mailSettings>
  </system.net>
  
  <system.web>
    <customErrors mode="Off" />
    <trace enabled="true" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true" />
    <sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424" sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes" cookieless="false" timeout="20" />
    <globalization requestEncoding="UTF-8" responseEncoding="UTF-8" />
    <xhtmlConformance mode="Strict" />

    <pages enableEventValidation="false">
      <!-- ASPNETAJAX -->
      <controls>
        <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add tagPrefix="umbraco" namespace="umbraco.presentation.templateControls" assembly="umbraco" />
      </controls>
    </pages>

    <httpModules>
      <!-- URL REWRTIER -->
      <add name="UrlRewriteModule" type="UrlRewritingNet.Web.UrlRewriteModule, UrlRewritingNet.UrlRewriter" />
      <add name="umbracoRequestModule" type="umbraco.presentation.requestModule" />
      <!-- UMBRACO -->
      <add name="viewstateMoverModule" type="umbraco.presentation.viewstateMoverModule" />
      <add name="umbracoBaseRequestModule" type="umbraco.presentation.umbracobase.requestModule" />
      <!-- ASPNETAJAX -->
      <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    </httpModules>

    <httpHandlers>
      <remove verb="*" path="*.asmx" />
      <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" />

      <!-- UMBRACO CHANNELS -->
      <add verb="*" path="umbraco/channels.aspx" type="umbraco.presentation.channels.api, umbraco" />
      <add verb="*" path="umbraco/channels/word.aspx" type="umbraco.presentation.channels.wordApi, umbraco" />
    </httpHandlers>

    <compilation defaultLanguage="c#" debug="false" batch="false">
      <assemblies>
        <!-- ASPNETAJAX -->
        <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
      </assemblies>
    </compilation>

    <authentication mode="Forms">
      <forms name="yourAuthCookie" loginUrl="login.aspx" protection="All" path="/" />
    </authentication>

    <authorization>
      <allow users="?" />
    </authorization>

    <!-- Membership Provider -->
    <membership defaultProvider="UmbracoMembershipProvider" userIsOnlineTimeWindow="15">
      <providers>
        <clear />
        <add name="UmbracoMembershipProvider" type="umbraco.providers.members.UmbracoMembershipProvider" enablePasswordRetrieval="false" enablePasswordReset="false" requiresQuestionAndAnswer="false" defaultMemberTypeAlias="TestType" />
        <add name="AspNetSqlMemberShipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="LocalSqlServer" />
        <add name="UsersMembershipProvider" type="umbraco.providers.UsersMembershipProvider" enablePasswordRetrieval="false" enablePasswordReset="false" requiresQuestionAndAnswer="false" />
      </providers>
    </membership>

    <!-- added to support membership providers in access layer -->
    <roleManager enabled="true" defaultProvider="UmbracoRoleProvider">
      <providers>
        <clear />
        <add name="UmbracoRoleProvider" type="umbraco.providers.members.UmbracoRoleProvider" applicationName="umbraco" />
      </providers>
    </roleManager>

    <!-- Sitemap provider-->
    <siteMap defaultProvider="UmbracoSiteMapProvider" enabled="true">
      <providers>
        <clear />
        <add name="UmbracoSiteMapProvider" type="umbraco.presentation.nodeFactory.UmbracoSiteMapProvider" defaultDescriptionAlias="description" securityTrimmingEnabled="true" />
      </providers>
    </siteMap>
        <trust level="Full" />
  </system.web>

  <!-- ASPNET3.5 CODEDOM-->
  <system.codedom>
    <compilers>
      <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <providerOption name="CompilerVersion" value="v3.5" />
        <providerOption name="WarnAsError" value="false" />
      </compiler>
    </compilers>
  </system.codedom>


  <!-- ASPNETAJAX -->
  <system.web.extensions>
    <scripting>
      <scriptResourceHandler enableCompression="true" enableCaching="true" />
    </scripting>
  </system.web.extensions>


  <!-- IIS 7 Integrated Mode Configuration -->
  <system.webServer>

    <validation validateIntegratedModeConfiguration="false" />
    <modules>
      <!-- Asp.net 3.5 Modules-->
      <remove name="ScriptModule" />
      <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

      <!-- UMBRACO modules-->
      <add name="UrlRewriteModule" type="UrlRewritingNet.Web.UrlRewriteModule, UrlRewritingNet.UrlRewriter" />
      <add name="umbracoRequestModule" type="umbraco.presentation.requestModule" />
      <add name="viewstateMoverModule" type="umbraco.presentation.viewstateMoverModule" />
      <add name="umbracoBaseRequestModule" type="umbraco.presentation.umbracobase.requestModule" />

      <remove name="ScriptModule" />
      <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    </modules>
        <directoryBrowse enabled="false" />
<!-- enable expiration headers -->
  
        
        
        <defaultDocument>
            <files>
                <clear />
                <add value="Default.htm" />
                <add value="Default.asp" />
                <add value="index.htm" />
                <add value="index.html" />
                <add value="iisstart.htm" />
                <add value="default.aspx" />
                <add value="index.php" />
            </files>
        </defaultDocument>
        <staticContent>
            <mimeMap fileExtension=".air" mimeType="application/vnd.adobe.air-application-installer-package+zip" />
        </staticContent>
<!-- end of enable expiration headers -->

</system.webServer>

  <!-- Ajax 1.0 Compatibility -->
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>