On Event+ Frontend posting I get the spinning wheel of nothingness

Hello there - on Events+ which has so-far configured right out of the box the only quirk is that on the frontend posting when people hit submit they get a spinning wheel of nothingness. The event does actually get added but to all intents and purposes the page just stays the same - any clues - url is
http://www.iamstaggered.com/directory/add-your-events/