Datepicker displaying characters in empty days

Datepicker displaying characters in empty days

Does any one have any idea why the datepicker widget is displaying characters in the blank day placeholders each month?  See the attached images for examples. If I don't use the change month and year drop-downs,
there is also a character between the month name and year.  The three screenshots attached are from three different browsers - IE, FF and Chrome.
 
jquery-1.4.2.min.js
jquery-ui-1.8.2-min.js
  1.  $("#txtUpdate").datepicker({
          dateFormat: 'yy-mm-dd',
          changeMonth: true,
          changeYear: true,


  2. });
Thanks,
Matt