Broken links in Admin menu

Try to update Web.config , so force the IE Browser to work like IE7(Compatibility View).
Add This Line on the Web.config before end of  </system.webServer> and start of the  <system.net> :

</defaultDocument>

        <httpProtocol>

            <customHeaders>

                <add name="X-UA-Compatible" value="IE=7" />

            </customHeaders>

        </httpProtocol>

  </system.webServer>

  <system.net>