error from nowhere

i haven’t changed anything on my blog for the past 5 hours at least. in the last half hour an error appeared randomly:

“WordPress database error: [Got error 28 from table handler]
SELECT DISTINCT * FROM wp_posts WHERE 1=1 AND post_date_gmt <= ‘2005-09-22 06:27:59’ AND (post_status = “publish” OR post_author = 1 AND post_status != ‘draft’ AND post_status != ‘static’) AND post_date >= ‘2005-09-21 14:38:36’ GROUP BY wp_posts.ID ORDER BY post_date DESC”

http://www.reachingmaturity.com

And, as you’ll see, it says it can’t find any entries, even though when i go into the site admin, i can clearly see them all. Ideas?

edit: this error is occuring in all of my blogs on that domain.