Image Show GK4 doesn't work on internet explorer

Or better it's not uploaded (loading icon continue to twiddel) BUT only on explorer.

It has worked well for some days and yesterday on 2 different sites on 2 different servers the slide show doens't work..

On Mozilla it continue to works perfectly

Hosting is by Joomlahost.it

Ex: http://www.newgenerationfiemme.com/

ex n. 2 http://test.fiemmestampa.it/