Page cannot be displayed after making a post

[Microdot]

Hi, after I make a post I get a page cannot be displayd in IE and in firefox:

Server not found

Firefox can't find the server at rinf.com [nofollow].

     
    *   Check the address for typing errors such as
          ww.example.com [nofollow] instead of
          www.example.com [nofollow]

    *   If you are unable to load any pages, check your computer's network
          connection.

    *   If your computer or network is protected by a firewall or proxy, make sure
          that Firefox is permitted to access the Web.

The post does publish though. It's happening to all members not just me.

Many thanks for your help,

[Fiery]

Check to see if all of your settings are correct: What is repair_settings.php?

Any mods, any major customizations you have done?