I'm fairly confident that ever since one of the most recent updates I now can't see any of my own nor shared calendar events when I click on the Calendar tab.

If I login via the WebGUI I can see them, in fact I can see the entries pop-up in the mini calendar on the left hand side. Just not when I check the Calendar tab, it's just empty!

Any ideas?

I think my provider (SimplyMS.com) is running ZimbraCS 5.0.11... how can I tell?

Many thanks in advance