My blog worked fine (www.pbmssite.be) until, without us changing anything(!), posts suddenly were not showing up anymore. After digging into the database, it appears that one way or the other, the posting-date in wp-posts is always 0000-00-00. When we change that, the post appears. What happened, and more, how can we solve that? (The people at Bluehost couldn't find an explanation either!)