Hello, I'm having issues with calendar sharing... I can share calendars but I am unable to un-share or resend invitations... I have suspected a permissions issue but I can't find any. Could someone please tell be the difference between sharing and delegation, proxies... delegation in ical client seems to be working just sharing does not. Also where are the shares located in the database? I would at least like to be able to manual un-share. Thank you for any help.