User blog comment:Sarah Manley/Test the Expanded Wiki Navigation/@comment-3971662-20111102012710/@comment-1613840-20111102162536

Yep - the issue is that the text is too wide for the allotted space, so it just jammed underneath. We are working on a width validator which will let you know that this will happen before you hit save. We hope to have it out in a few weeks.