Orchard doesn't render css/images

When we first launched the Trial themes for Orchard, some clients experienced CSS issues using both trial and purchased versions of Orchard.

Although this is now fixed, the versions of the themes requested at the time may need a manual fix.

Open Web.config at Themes\ThemeName\Content

Check that these lines are included within the system.webserver section and remove any duplicates of the "add name" entry:

<handlers accessPolicy="Script,Read">
      <!--
      iis7 - for any request to a file exists on disk, return it via native http module.
      accessPolicy 'Script' is to allow for a managed 404 page.
      -->
      <add name="SimpleHandlerFactory-Integrated" path="*.ashx" verb="GET,HEAD,POST,DEBUG" type="System.Web.UI.SimpleHandlerFactory" preCondition="integratedMode" />
      <add name="StaticFile" path="*" verb="*" modules="StaticFileModule" preCondition="integratedMode" resourceType="File" requireAccess="Read" />
    </handlers>