There are 404s for js files and javascript errors in the console when I hit right arrow, but after a while (a few tries) I'm able to start using left and right

There are 404s for js files and javascript errors in the console when I hit right arrow, but after a while (a few tries) I'm able to start using left and right arrows (inconsistently) in the slide deck. Looks like they require the speaking to mean much though. Oh hey, here's the talk to YouTube (2010) https://www.youtube.com/watch?v=olH-9b3VJfs https://www.youtube.com/watch?v=olH-9b3VJfs