I have been getting this problem for around a week now but I have no clue on what's wrong. It has a problem with cookies (so not everyone sees the problem, a few people do), and after the cookies are cleared the problem disappears.
I get this error right on top of my blog
Database error: [Unknown column '1none' in 'where clause']
SELECT DISTINCT * FROM wp_posts WHERE 1=1none AND (post_author = 0) AND post_date_gmt <= '2004-10-19 06:36:59' AND (post_status = "publish") GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 5