In a continuing effort to provide high quality products, Autodesk has released AutoCAD Civil 3D 2013 Hotfix 3 which fixes or addresses a variety of issues discovered by customers and by Autodesk's internal testing team.
This Hotfix does not include previous Hotfixes or Service Packs for AutoCAD Civil 3D 2013. In order to install AutoCAD Civil 3D 2013 Hotfix 3 you must have already applied AutoCAD Civil 3D 2013 Service Pack 1.
As a result of detailed information from customers who used the Customer Error Reporting Utility, a number of problems were identified and fixed. These fixes include stability improvements under Windows 8 and updates to how Vault manages circular references.
You can obtain it from here: DL21513411