We discovered recently that some of our screencasts had mysteriously started misbehaving.
On consulting the Techsmith’s Camtasia site (Camtasia is the screen recording software we used to generate the screencasts) we found that this is a known problem which afflicts only the very latest version of Adobe’s Flash player when combined with a certain mix of audio options. The end result is that the voice-over periodically goes into Betty Boop mode. At any rate, Techsmith has released a tool to fix this issue and we’ve just processed our screencasts and uploaded the (hopefully) fixed versions. Most of the screencasts can be found on our Movies page. But there are also a few others lurking in various dark corners of the site.
With luck, the audio should now play back ok. However, if you happen to come across one that suddenly starts jumping around and squeaking in a madcap Betty Boop manner, please let us know...