I recently updated to this latest version 1.52 and it seems to be causing problems. First, I use this facebook update plugin http://wordpress.org/extend/plugins/facebook-page-publish/ , and now when the post hits it's time to expire turn it into a draft, it updates facebook again. Also, my scheduled wordpress posts seem to be missing their schedule all the time. Not sure if this is related, but I really havent changed anything else on my server or plugin list. Any reason this would screw with scheduled posts?