I would double-check that you don't have CU5 for SQL 2012 RTM, and after having verified that you actually have the files for http://support.microsoft.com/kb/2861107, I would open a case with Microsoft. These kinds of issue are difficult to assist with over a forum.
[font="Times New Roman"]Erland Sommarskog, SQL Server MVP, www.sommarskog.se[/font]