|Note: If you are having video playback issues with either The SLII Challenge or Learn the SLII Model Online, please see this help topic, instead.|
If a video fails to play or is choppy, it could be one of the following issues:
1. Your internet connection may not be reliable enough to effectively stream the video. Ensure you are using a high speed internet connection and use a wired connection (not wireless), if possible.
2. You may not have the latest version of Flash installed - Go to http://helpx.adobe.com/flash-player/kb/find-version-flash-player.html to ensure your Flash player is up-to-date*.
*Note: For advanced users, you can also use an internet browser capable of supporting HTML5 video if Flash is not an option.