Autosave database error post 2.3 upgrade

Hello,

After upgrading to WP 2.3 auto save throws the following error:

WordPress database error: [Table 'wpfootnoted.wp_categories' doesn't exist]
SELECT c.cat_ID AS ID, MAX(p.post_modified) AS last_mod FROM <code>wp_categories</code> c, <code>wp_post2cat</code> pc, <code>wp_posts</code> p WHERE pc.category_id = c.cat_ID AND p.ID = pc.post_id AND p.post_status = 'publish' AND p.post_type='post' GROUP BY c.cat_id
1479

I have grepped through the entire site and the string ‘wp_categories’ is not present which I assume is due to some level of abstraction in the way the query is built.

Can anyone advise me as to where I can look to fix this? A value in the database perhaps?

I examined autosave.js and autosave.js.php but could not find where the old field name would be coming from.

Thanks for any help!

jg