My apologies! There was a new
javascript-related bug in there - in fact ALL the popup menus had stopped working.
Fixed in
CVS and current nightly.
The culprit? A single character was lowercase instead of uppercase. You can fix it yourself by searching in lib/weblib.php for "selectedindex" and changing it to "selectedIndex".
(As an aside - can all bugs related to CVS/nightly/development versions please go in the
bug tracker? ... little bugs such as this one won't affect most people).