I just watched a video and it constantly had ...refresh or I cant see please refresh and this constantly happens during  live trainings

 

Now im not the training tools biggest fan by any stretch of the imagination ...although Felix seems to  handle it the best (must give it a kick   now and again )

 

I have watched well over 100 hours of videos/live training prolly nearer 200 hours and I have only ever had 1 problem (had to clear cache of temporary files as it got full)

 

Now I dont work for Microsoft but you should use Internet Explorer 9 or IE9 and im on Vista cannot force you but it makes it run and work  so its a no brainer you can constantly be refreshing or not - your choice

 

Believe you me  and trust me if I had had a lot of problems I would have switched to Mozilla Firefox or something else

 

Good luck @ the tables