Dear Earl Portnoy,
1. if layout "main-right" is default layout in template manager.
2. go to your_site\templates\sj_decou\layouts\main-right.xml and find:
<header html5tag="header" order="1" id="yt_header" autosize="0">
<positions>
<position type="feature" class="span2" data-stablet="span5">@logo</position>
<position class="span10" data-normal="span10" data-tablet="span10" data-stablet="span7" type="feature">@menu</position>
</positions>
</header>
=>
<header html5tag="header" order="1" id="yt_header" autosize="0">
<positions>
<position type="feature" class="span5" data-stablet="span5">@logo</position>
<position class="span7" data-normal="span7" data-tablet="span7" data-stablet="span7" type="feature">@menu</position>
</positions>
</header>
Thanks!