SAP Calendar synchronization with Outlook 2010

Hello,

I'm using Outlookk 2010, Windows 7, and SAPGUI 720. In the former version of Outlook I could synchronize my Calendar with the SAP Calendar, but I can't do it today with the new configuration!

I found a Thread: "SAP Calender / Outlook 2010 with windows 7" about that subject, but no answer, neither in the OSS notes. I've already tried note 1136585.

Does anyone have any idea?

Thanks

Regards

Michel