For some reason yesterday i discovered all my bookings in my calendar in my iphone disappeared after syncing with my laptop.  I recently got an iphone 4 and am using Outlook 2011, and it has been syncing without issue for at least 2 weeks.  My calendar in Outlook still exists but the calendar in ical is the same as my iphone, i.e. nothing.... The sync services seems to be set up.  The only thing i did differently yesterday is my Outlook was running slow so i closed everything and restarted my computer, normally i don't close Outlook or shutdown my laptop.  So i expect it had something to do with that.  I see most of the question posted here are for new devices.  Any suggestions??