I can save options and drag-and-drop all just fine, but several buttons are not showing. The ones I've noticed and needed are:
- Advanced HR
There are several others that don't show, either, including Search, Smilies, NBSP, and XHTML Attributes.
Options are definitely working, as reordering buttons that do appear works fine. Could there be a plugin conflict? Is there a problem with multisite? I will try to find a time where deactivating and reactivating all other plugins won't cause too much disruption, but judging by the forums, this does seem to be a problem for others as well.