Mystiske problemer med exchange server.

Hej derude.
Sidder med et mærkeligt problem her med webexchange.

Hvis jeg loader siden i IE 7,0 sker der dette :
http://www.myupload.dk/showfile/32541beddf.JPG/

^ Den lister ikke de mails der er i indbakken, kladder, slettet post osv.

Jeg kan fint oprette en mail i IE 7.0 og sende den.
___________________________________________________

Åbner jeg siden i Firefox bliver alle mails i mapperne listet fint.

Problemet i firefox er bare at hvis jeg opretter en mail og trykker på "send" så kommer følgende fejl :

The page cannot be found
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

Please try the following:

    * Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
    * If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
    * Click the Back button to try another link.

HTTP Error 404 - File or directory not found.
Internet Information Services (IIS)

Technical Information (for support personnel)

    * Go to Microsoft Product Support Services and perform a title search for the words HTTP and 404.
    * Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Web Site Setup, Common Administrative Tasks, and About Custom Error Messages.


Skal jeg have opdateret exchange serveren ? Eller andre ideér ?