My pet peeve is in the "create a report" section of InvestEngine (useful for doing reports aligned to tax year). If you try to type a date at all, the year always ends up as 000n and no amount of typing numbers will get it to accept a 4 digit year (or even a 2 digit year starting 20). The only way to undo this state is to click today and then page through the years and months using the arrows on their stupid date widget.