I'm probably not explaining myself very well. Expand to show all 9 months (wish it was 12) and click today, March 3rd. Hold the shift key down if you want. Now scroll all to the right and pick December 1st. Your first date will not be March 3rd as it's scrolled off the screen, it will be whatever the first date is for the month showing in the upper left, probably April 1st. Obviously the calendar objects are being destroyed and you can't pick any range this isn't actually showing.