UI change has caused problems
With the new UI (at least when using the latest Firefox) some widgets, such as the Google Calendar, have lost their settings. Also when clicking to get at the settings they are not displayed and so cannot be reset.
Another minor problem with the UI is that Settings and Refresh are now in the same menu, so what took one click before now takes two.
Happens in Chrome as well. Only happened to Google Calendar, GMail still works but same thing with Settings.