Good news!
Multi-language and non-English Project Server instances can be updated again with the latest cumulative update packages. The December 2011 Cumulative Updates fixes the issue introduced in the June 2011 CU that caused non-English PWA instances to show English headers the Project Center page, My Tasks page and Resource Center page regardless of the selected language.
This issue has been fixed in the December 2011 CU.
In addition, the August, October and December 2011 also contain some fixes for other common problems. For a complete list of fixes see this article: http://msepm.hsquared.be/?p=294
So now you can safely update your non-English Project Server instance with the latest updates available for Project and Project Server.
You can find the December 2011 CU on these pages:
- Project: http://support.microsoft.com/kb/2597006
- Project Server: http://support.microsoft.com/kb/2596997

