When I edit a post, the "save" button sometimes turns into "vote now". Clicking on this "vote now" button submits the changes but also gives a database error message. If I edit that same post a second time, the "go advanced" button also becomes "vote now" (I have two vote now buttons). On a third edit, the "delete" button also becomes "vote now". The problem seems to be associated with posts with erroneous LaTeX, but that might just be appearance.