Common problems and solutions
Problem: Download stops in the middle or doesn't start, or zip file is corrupted
Solution: Sometimes if there is trouble downloading files, changing the browser can do the trick. If you are on Safari, try Chrome or if your are Internet Explorer try Firefox.
Problem: Cannot unzip or error message after unzipping
Solution: Sometimes the zip files do not work well with windows, and most of the time this has been solved by installing this free software to unzip the files http://www.7-zip.org/
Problem: No audio or video not playing well
Solution: Try using the free video player program: VLC. These videos are heavily compressed so as to fit a lot of training into not a too big file size, and on some machines only VLC will be able to play the video well (this has mostly been an issue with windows machines) You can download VLC here: http://www.videolan.org/vlc/