Date picker first week in november day repeat

I've got the following UI datepicker options and it is generating the first Sunday in November twice (1,2,3,4,4,5 for Nov 07 for example) which throws off every day in November as well as what are registered as weekends. This is actually in 1.5.2 but it won't let me select that version

$(document).ready(function(){
	$("#instruction_designer_calendar").datepicker({ 
		minDate: new Date(2008, 1 - 1, 1),
		maxDate: new Date(2010, 1 - 1, 1),
		rangeSelect: true,
		numberOfMonths: 5,
		changeMonth: false,
		changeYear: false,
		statusForDate: highlightToday,
		//beforeShowDay: $.datepicker.noWeekends, 
	}).children("div").css("width","100%").css("margin","0 auto");
});

function highlightToday(date, inst) {  
    var today = new Date();  
    today = new Date(today.getFullYear(), today.getMonth(), today.getDate());  
    return $.datepicker.dateStatus(date, inst) +  
        (today.getTime() == date.getTime() ? ' (today)' : '');  
}