jQuery Grid Plugin - jqGrid

Full install of jqgrid 3.6.2 (all modules selected).  jQuery 1.41.  jQueryUI 1.8a1

Drag on form dialogs is supposed to be true by default?

Dialog function from jqueryUI works fine.  Clicking edit selected button on pager for the following grid brings up an form dialog, but it cant be dragged/moved.

Grid code:

$("#business_table").jqGrid({
        url:'generate_table/business',
        editurl:'edit_table/business',
        cellsubmit:'remote',
        cellurl:'edit_cell/business',
        afterSaveCell:function () {$.jGrowl("Field updated!")},
        datatype: "json",
        colNames:['Id','Business Name', 'Contact', 'Address 1', 'Address 2', 'Address 3'],
        colModel:[
            {name:'id',index:'id', width:90, hidden:true},
            {name:'name',index:'name', width:120, editable:true, edittype:'text', editrules:'required'},
            {name:'contact',index:'contact', width:120,  editable:true, edittype:'text'},
            {name:'address1',index:'address1', width:120,  editable:true, edittype:'text'},
            {name:'address2',index:'address2', width:120,  editable:true, edittype:'text'},
            {name:'address3',index:'address3', width:120,  editable:true, edittype:'text'}
        ],
        rowNum:10,
        rowList:[10,20,30],
        pager: '#business_pager',
        sortname: 'name',
        viewrecords: true,
        sortorder: "desc",
        caption:"Business Admin",
        cellEdit: false
    });
    $("#business_table").jqGrid('navGrid','#business_pager',{edit:true,add:false,del:false});