Datepicker year month combo box scroll does not work by dragging scrollbar

Datepicker year month combo box scroll does not work by dragging scrollbar

I have a datepicker defined as:

$( "#datepicker" ).datepicker({
      changeMonth: true,
      changeYear: true,
      dateFormat: "mm/dd/yy",
      minDate: new Date(1900, 1 - 1, 1),
      yearRange: "c-125:c+15"
      });

The HTML is :
      <p>Date: <input type="text" id="datepicker"></p>

When I click on the datepicker and click on the year, I cannot click & drag the scroll bar.  The mousewheel works to scroll, but the dragging the scroll bar does not.

I have tried both 1.10.3 & 1.10.4 versions of jqueryui, same results.

Anybody have any idea's?