MovableType and corrupted datbases
Yesterday the mySQL database on this server crashed, so I apologize if any comments submitted have been lost. I didn't realize that was what happened, but... in case other people have this problem (since a Google search didn't turn up any clues) the error message I was getting was:
Building date-based archive 'Monthly20060201000000' failed: Build error in template 'Date-Based Archive': Error in MTEntries tag: Error in MTIfCommentsActive tag:My mt_comments table in the mySQL datbase was what was marked as crashed, so I am assuming that had a different table crashed it would be reflected in the error message.
A simple check and repair of the database fixed the problem.