IFD organisation not working in other browsers after installing roll up 12?

I have a serious problem with our deployment of roll up 12 on our IFD CRM 2011 organization. I will try to explain the problem:

1)    When we login from other browser to CRM orgainsation it is not loading properly.

·         Client is using Windows 8 , Internet Explorer ;

·         Server: Windows Server 2008 R2 Standard SP1 with Microsoft Dynamics CRM 2011 Rollup 12 on it.

When i refresh it is randomly appearing jscript error. It appears, for example, when opening or closing forms.

Microsoft Dynamics CRM Error Report Contents

<CrmScriptErrorReport>
  <ReportVersion>1.0</ReportVersion>
  <ScriptErrorDetails>
   <Message>Uncaught TypeError: Object [object global] has no method 'attachEvent'</Message>
   <Line>1</Line>
   <URL>/_static/_common/scripts/maincontrols.js?ver=231350131</URL>
   <PageURL>/main.aspx</PageURL>
   <Function></Function>
   <CallStack>
   </CallStack>
  </ScriptErrorDetails>
  <ClientInformation>
   <BrowserUserAgent>Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.12 Safari/537.36</BrowserUserAgent>
   <BrowserLanguage>undefined</BrowserLanguage>
   <SystemLanguage>undefined</SystemLanguage>
   <UserLanguage>undefined</UserLanguage>
   <ScreenResolution>1366x768</ScreenResolution>
   <ClientName>Web</ClientName>
   <ClientTime>2013-05-22T11:19:09</ClientTime>
  </ClientInformation>
  <ServerInformation>
    <OrgLanguage>1033</OrgLanguage>
    <OrgCulture>1033</OrgCulture>
    <UserLanguage>1033</UserLanguage>
    <UserCulture>1033</UserCulture>
    <OrgID>{3040196F-B169-E011-89D3-00155D0B2400}</OrgID>
    <UserID>{BF00B8B2-1B98-E011-B652-00155D0B2400}</UserID>
    <CRMVersion>5.0.9690.3448</CRMVersion>
  </ServerInformation>
</CrmScriptErrorReport>

2) i am getting following service errors in fire fox and chrome  

  AppWebServices/LookupMruWebService.asmx  

400: internal server error