Modifying Tool Bar Problems

Im trying to modify the tool bars, Im using 2.0 Beta 2 and Im gonig into fckconfig.js I am deleteing some of the buttons from the basic toolbar and I know that it is displaying the basic one as I have succsessfully chnaged it form the Defualt by using
<script type="text/javascript">
var oFCKeditor = new FCKeditor( \'FCKeditor1\' ) ;
oFCKeditor.Width = 400 ;
oFCKeditor.Height = 400 ;
oFCKeditor.ToolbarSet = "Basic" ;
oFCKeditor.Create() ;
</script>');
But when I delete bold from the toolbar thing in the config and I add underline, no change is made and it still looks the same. With the bold button sitll there and no underline

Thanks Chris