Some Bentley Learn Server Videos Failing to Play


I've just started using the new Promis.e Connect Edition and have been researching some task I have to accomplish before the rest of my organization starts using it. It seams there is a great amount of the exact information I need on the Bentley Learn Server. The problem is only a hand full of them will load and play. Not sure if I'm doing something incorrectly. Any help would be greatly appreciated.