iCal - shared calendars no edit but create
I'am running Zimbra 5.0.9 OSE, and I love it. But using the Calendars with iCal is giving me a hard time.
My account has 1 own calendar and 3 shared calendars (with admin/manager privileges). I can see all 4 in iCal, but I cannot edit any entries of the shared ones. I can create new entries in the shared calendars and edit them afterwards. But if they are changed within the WebGUI I cannot edit them anymore.
If I manage all 4 calendars within the WebGUI I don't have any issues, can edit/create/delete entries in all of them without any problem.
Is there already a solution for this issue, or is it by design?
Thanks in advance for any help.