• At the principal, run:

    -- This should tell the witness that it is no longer needed. Might have just had issues with the SSMS GUI.

    ALTER DATABASE [DatabaseName] SET SAFETY OFF

    -- Here is the other option. I am going to guess that this statment would fail if mirroring has already been disconnected. However, if the above doesn't work, it is worth an attempt.

    ALTER DATABASE [DatabaseName] SET PARTNER OFF

    Fraggle