I observed following strange issue with inputDate: chooseDate under IE9 but also Firefox on Windows 7 and Vista:
I have a standard inputDate with chooseDate date picker. I click to choose a date and if I choose a day of the currently opened month and year, it is fine. As soon as try to select a different month or year, the chooseDate date picker disappears without any date selection. This behavior I observe from ViewCtiteria generated inputDate, but also from manually added inputDate element.