The CAETE recording for Lecture 3 yesterday had a problem that resulted in the entire recording appearing as just a blank green screen. CAETE is aware of the problem and (fortunately) they have a back-up. They will be restoring the video from the back-up and a new entry for Lecture 3 will appear in the RSS feed and should be called something similar to "Lecture 3 - Recovered". Sorry for the problem!