The four tabs don’t work in lesson page of the following collection.
I created this collection last month and added some lessons which included Youtube video links as resources. I shared them and it worked fine audio and video and the four tabs worked fine.
However, after recent update, I found the problem for all lessons in this collection. The resource tab showed the number (2) and even if I click the tub, it doesn’t work at all. The browsers are Firefox3.6.12 and IE8 on WinXP.
This trouble happen in the lesson with video which I imported and uploaded.