I can create a schedule event for a date that doesn't exist (eg, April 31st - even though April only has 30 days)
-Choose April 31 2006 as the date.
-Save Event - there is no indication that an error has occurred
-In the calendar view, the event is entered into May 1st 2006 by default
It seems this could be fixed by having the day menus auto change when a month is chosen.