Please make sure the newest version of Adobe Flash Player plugin is installed. Without this the video and buttons will not be able to load properly and may cause the course to freeze or crash. If not already installed, you can do so by going to the following link and following the instructions for downloading and installing the plugin.
Network speed can also have an impact on how videos stream and play on your system. If you try these solutions and continue to experience difficulties, please check with your company’s IT personnel who should be able to assist with any hardware issues you experience.