Adding filter categories in Widget settings, selected categories do not display properly in IE9 (dark blue block appears instead). Although not readable, filters do get applied correctly.
Fine in Chrome.
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After editing event date/times, they displayed correcly in calendar and agenda but event page showed 1st January 1970. I had to delete the event and create a new one to rectify.
http://wordpress.org/extend/plugins/all-in-one-event-calendar/
