SiteMap Provider resolution problems in a SharePoint site.

[jimdav24]

I've implemented three sitemap providers for my SharePoint site. They all work but after 24 hours up to 2 weeks of uninterrupted service, I get the error

"The file sitemap.sitemap required by XmlSiteMapProvider does not exist."

It seems to be a permissions problem since I can browse the site when logged on to the server as a local admin. However, I can't browse the site remotely as a user with read-only access to the sharepoint site and get the above error.

To correct the problem, I log on to the server as the system admin and browse the site which comes up. Then I can browse the site from a remote machine as the read-only user.

The site map provider entries in the web.config are:

        <add name="FunctPgmsMenuProvider"
          type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.3600.0, Culture=neutral, 
                PublicKeyToken=b03f5f7f11d50a3a"
          siteMapFile="FunctPgmsMenu.sitemap"/>
        <add name="ServicesMenuProvider"
          type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.3600.0, Culture=neutral, 
                PublicKeyToken=b03f5f7f11d50a3a"
          siteMapFile="ServicesMenu.sitemap"/>
        <add name="HowDoIMenuProvider"
          type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.3600.0, Culture=neutral, 
                PublicKeyToken=b03f5f7f11d50a3a"
          siteMapFile="HowDoIMenu.sitemap"/>
 

Thanks in advance for your help.