>>What installer are you running, original one or SP1?
>
>From this link:
>
>http://www.microsoft.com/download/en/details.aspx?id=26727
>
>I selected the two x64 files for my 64 bits environment. When running SQLManagementStudio_x64_ENU.exe, it prompts with this.
>
>Or, maybe I only need the second one. Is that correct?

Only second one on server