I've asked for help on the iPad forum twice now without a single response, so I am thinking that it might be an iCal/iTunes problem rather then iPad/Calendar one!
I'll repeat the basics here and post this link (https://discussions.apple.com/message/21740855#21740855) to my iPad thread post which explains in more detail.
Essentially, syncing between my iCal v4.0.4 (1395.7) under MacOSX.6.8 Build 10K549 and my Calendards under iOS 6.1.3 (10B329) on an iPad 3rd generation is erratic and unreliable. I do not use iCloud and syncing is done via USB cable and iTunes v11.0.2 (26).
What makes it worse is that the symptoms change!
Currently, appointments created on the iPad do not sync across to iCal but appointments created in iCal do sync across to the iPad.
Previously, existing appointments shown in iCal but which are subsequently edited show in iCal as expected but on the iPad as both the old and new entry. Also, when creating an appointment in iCal the edit panel opens in the default calendar which is then changed to the correct calendar and actual data - the default panel and edited data both appreaded on the iPad.
I have recently noticed that iCal periodically, yet rarely, presents a message when opening: Upgrading iCal Calendars and when this has completed, syncing returns to normal. However, I have no idea what prompts that message nor how I could manually start an "upgrading" so that I can force a syncing correction.
Complicated? Well, it is rather difficult to explain what I mean as the problem is so erratic and inconsistent.
I have tried the Apple suggestion here: http://support.apple.com/kb/TS1627 and it made no difference whatsoever.
In short, how can I get the iCal and Calendars to sync reliably and acurately?
My forehead is somewhat flattened after I have spent many hours beating my head against a brick wall over this - please help before the wall gets damaged beyond repair!
Message was edited by: iBozz to correct stupid typos!