Datatables table header & column data misaligned when using "sScrollY"

I have fix this way;

wrap the table with div and

CSS

 overflow:auto;
 height: 400px;
 position:relative;

Remove

• “sScrollY”
• "sScrollX"

I've had to delay when data is loaded because when page loads it does not see the scroll bar and table headers get misaligned. But if I delay it, it sees the scroll bar and the table header matches up perfect.

<button onclick="delayload('loadusers()')">Load Table</button>

function delayload(f){
   setTimeout(f,50)
}

function loadusers() {

   oTable = $('#userslist').dataTable({
   "bJQueryUI": true,
   "bRetrieve": true,
   "sScrollY": "150px",
   "bAutoWidth" : true,
   "bPaginate": false,
   "sScrollX": "100%",
   "sScrollXInner": "100%",
   "sPaginationType": "full_numbers",
   "bAutoWidth": false,
   "sDom": '<"H"lfr>t<"F"<"useraccountbtn">>',
   "aaData": datan,
   "aoColumns": [
      { "mDataProp": "uid"},
      { "mDataProp": "fn" },
      { "mDataProp": "un" },
      { "mDataProp": "pw" },
      { "mDataProp": "em" },
      { "mDataProp": "ac" }
    ]
   });
}