This is a great product but I've just installed it on wordpress 3.5 and although it's working fine in Opera, Firefox and Chrome it's coming up with serious errors in IE9,
see my site: http://www.activityneeds.com/?page_id=1614
Now as IE is still the most commonly used browser this problem should be your top priority. Please accept my criticism and request in the spirit it is given; it's a great product but....
Hoping for a response soon.