My first issue I notice you actually have on your sample page here: http://wpshindig.com/events/
When you hover the event Toronto Coffee & Code on April 3rd you’ll note that instead of the &-sign it has & written out instead. I have the same problem but for Swedish characters it’s worse because we use them for our characters åäö.
My second issue is that the hover function is behaving strangely, a lot of the time the hover layer doesn’t display at all, do you have any idea what could be the problem: http://kalendarium.nu/evenemang/kategori/musik/