I struggled with the iPad’s built-in calendar app, but eventually gave up and switched to Pocket Informant HD. You can search for it in the App Store and review the reviews. If you go to the Developer’s website you can download a comprehensive User Manual. It’s not the cheapest calendar/diary/project/task manager but it has many advantages, in my opinion, over its rivals. One is that it ‘sits on top of’ iCal and optionally imports any appointments that are there. This is important because many other iPad apps use iCal as the default iPad calendar app. So, for example, the iPad’s native ‘Mail’ app automatically places any incoming appointments that it recognises into the iPad’s native calendar app. Pocket Informant HD picks these up and displays them - but ‘marks’ them so they can be distinguished from Pocket Informant appointments. If you read the manual you’ll see it’s more-or-less infinitely configurable - many users of the native iPad Calendar app complain about it's inability to, say, choose the colours of different appointments, tasks or projects.
I like it's very flexible ‘recurring appointments’ capability - the ‘custom’ mode can set up virtually any esoteric recurring appointment periodicity.
Some users have remarked on stability issues - but I’ve personally not had any problems at all.
I should say, of course, that I have no connection with the Developers of Pocket Informant. Don’t hesitate to post again if you have some specific questions.
Tim
Scotland