AutoCAD Civil 3D 2012 Service Pack 4!!!

Hi all... In a continuing effort to provide high quality products, Autodesk has released AutoCAD Civil 3D 2012 Service Pack 4, which fixes or addresses a variety of issues discovered by customers and by Autodesk's internal testing team.
This service pack does not include previous hotfixes or Service Packs for AutoCAD Civil 3D 2012. In order to install AutoCAD Civil 3D 2012 Service Pack 4 you must have already applied AutoCAD Civil 3D 2012 Service Pack 3 and Civil 3D 2012 Service Pack 2.1.
Please remember to always refer to the README file for installation first.