the combo box's lisefillrange is from a range that contains 52 items which
are 52 Sundays from prior and current yesrs. when user clicks on the
drop-down arrow, how to show the first Sunday of the current year not the
first Sunday from the prior year. For example, the Combo Box contains all the
Sundays from 2008 and 2009, when user clicks on it, the first item shows in
the list is 1/4/09 not '1/6/08'.

thanks.