select

An error like this one:

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM block block WHERE (theme = 'bartik')' at line 1: SELECT FROM {block} block WHERE (theme = :db_condition_placeholder_0) ; Array ( [:db_condition_placeholder_0] => bartik ) in xray_block_statistics() (line 80 of /home/ben/workspace/dgd7all/sites/default/modules/xray/xray.module).

So you've custom themed a search bar into your brand spanking new custom theme using my handy tutorial covering that topic (http://www.agaricdesign.com/note/theme-search-form-drupal-6)