hi, don, i’m having the exact same issue as crowdesign: when i run the search, the main page navigation disappears. everything else functions as expected.
my specs are a little different: i’m using WP 3.8 and a modification of the newsworthy theme, not a child theme.
the site is on a staging server for client review but hasn’t been approved for public viewing yet. can i email you a private link to the staging site? and if you would like a copy of the theme files, i can send those as well.