Thank you for your inquiry. I am also not able to reproduce that issue, but I do know vimeo had a slight hiccup earlier today and I was unable to access tutorials.
I definitely agree with Dr. Sassi and recommend trying a different browser to see if you can reproduce the issue.
@Dr. Sassi - The streaming types only effect older tutorials that are hosted on Cineversity. For the newer Vimeo videos, the streaming options will not have any effect.