Problem on Module 2 - Freezing at 2.2

Buongiorno tutti

The introductory (Interactive Audio Lesson) freezes almost half way in at around 8-9 mins.

I am using latest chrome version 48.0 on Max os  10.2. However, it does not free on safari.

Grazie.

Ok just restarted and it problem is fixed  now. can delete if required.