not sure if all this is connected but has been like it for over a month

we have a mobile me account. Calendar on iphone and ipad and was on desktop but i have now removed it.

problems i'm having

1. on ipad theres nothing - calendar is very slow to load then it freezes and i can't see anything at all.

2. on iphone i can't see anything on the day but they are there on the list, and a lot of items have been duplicated 20 times - they have no repeat on them

I'm completely lost have been searching the internet and can't find anything similar. - anyone have any ideas? thanks