If you have subscribed to one of our online calendars with Zimbra, please follow these steps every so often to refresh the calendar. As of 2/2008, Zimbra doesn't do this automatically.
Log in to Zimbra. Go to your calendar page.
On the left are all your calendars. Hover your mouse over the calendar to reload.
Hold down the "CTRL" key. Click the mouse on the calendar's name.
A pop-up menu will appear.
Click "Reload" from the pop-up menu.
Reload is not the same as Refresh.