Help with Sidbar

The sidebar in Internet Explorer is moved down.

Can someone please tell me what in the CSS I need to edit to make it stay at the top right like it does in Firefox.

I think I need to edit this:

.right_sidebar_single {

width: 300px;

margin: 0 7px;

font-family:”Trebuchet MS”,Verdana;

font-size:12px;

font-weight:normal;

color: #5d81a5;

Or this:

.right_sidebar_container_bottom{

width: 300px;

margin: 10px 0 0;

float: right;

padding: 5px;

background: #113b4e url(images/bg_right_sidebar_container_bottom.gif) repeat-y top left;

…by adding 0’s or something. But when I do that it moves down in FireFox.

Thanks.