Re: data entered on calander evnt is not saved
Is it not syncing between accounts? Or just the one account it is entered to?
What account is the Calendar linked to? Make sure that account can sync.
Settings > email + accounts > tap the account name and make sure calendar is set up to sync there
Settings > email + accounts > hold down on the account name and tap "sync" from the pop up menu
Whenever I add a Calendar event, I always manually sync the affected accounts afterward, just to do a sanity test.