Search Broken via edit-pages.php from Admin

Hi,

I have a new wordpress blog running on WP MU 2.8.2 updated via svn. All of my posts are actually pages. When I try to search for content from within the admin pages using edit-pages.php, link from Pages in the menu bar, I get “No pages found.” Searching from the edit.php page, linked in the left from Posts, I get the appropriate results.

Searching for search problems or search broken turned up several links indicating potential problems with .htaccess or database corruption. I repaired the DB tables using phpmyadmin. Given that edit.php version of the search seems to work, I suspect something is wrong withthe edit-pages.php search implementation.

The edit.php search box calls the_search_query() while edit-pages.php calls _admin_search_query().

Thanks in advance for any tips.