Dashboard does not work today.
I have upgraded both my MacBook Air and my Mac Mini to OS 10.9.2. The Air works just as it did in 10.9.1. Dashboard works on the Air. But Dashboard on the Mini does not operate. I click on the Dashboard icon in the Dock. Nothing happens. I click and hold on the Dashboard icon. The pop-up menu appears. In that menu I click "Show Dashboard." No response. I click "Dashboard Preferences," and I get the Mission Control Preference. Here is how that appears:
I do not see anything here that would disable Dashboard.
Does anyone have any idea as to why Dashboard does not work in 10.9.2?
TIA
Mac mini (Mid 2010), OS X Mavericks (10.9)