If you encounter problems while customizing global site navigation in a custom site definition for SharePoint 2010, you probably can solve it by adding the necessary navbar element in navbars section of the onet.xml: <NavBar Name="$Resources:core,category\_Top;" Separator="&amp;nbsp;&amp;nbsp;&amp;nbsp;" Body="&lt;a ID='onettopnavbar#LABEL\_ID#' href='#URL#' accesskey='J'&gt;#LABEL#&lt;/a&gt;" ID="1002" /> It solved the problems for me :). Comments from Wordpress.com Chilly - Nov 3, 2012 How did you edit the Onet.XML file? What if this is only happening on one site in a whole site colleciton will this help this site as well.