Hi Brent,
Thanks for getting in touch, and I apologize for the delay in response. Events 3.0 included huge changes to the plugin, which can effect highly customized sites and themes like yours.
The behavior you’re seeing in the calendar widget is all correct, it’s just the newest iteration of the calendar itself. Instead of tooltips, you can click the date to see the events listed underneath. On initial load it lists the next upcoming. You can set the calendar to show no listed events on the widget page by setting the Number of Events to Show to zero. In that case, clicking the date will take the user to a day view listing the events. If you wanted to replace that move with a tooltip, you’d need to customize it. We may be able to point you in the right direction for that.
Hopefully that answers your questions. Let me know if there’s anything else I can do to help.
Best,
Leah