Yes, I am using the default profile. The navbar appears on the homepage. I fixed the problem by going into site/templates/header.inc and commenting out the line"$children->prepend($homepage);" within the following code snippet:
// Create the top navigation list by listing the children of the homepage.
// If the section we are in is the current (identified by $page->rootParent)
// then note it with <a class='on'> so we can style it differently in our CSS
// and add a text that is visually hidden, but available for screen readers.
// In this case we also want the homepage to be part of our top navigation,
// so we prepend it to the pages we cycle through:
$homepage = $pages->get("/");
$children = $homepage->children;
// $children->prepend($homepage);