Hi Marta, if videos play well for you in general but then they start playing slowing or starting and stopping, it usually means one of two things: 1) You need to restart your computer 2) You are having intermittent outages in your Internet connection.
We agree Anne ~ Admittedly this was a bit of an experiment in our earlier days as a website. We did two classes like this (the other shows a bit more light) but have not gone back since. I hope the verbal cues were enough to get by on this one. Thank you for your feedback. We always appreciate it.