Some of our quizzes can only be taken if you have completed and passed an earlier quiz in the same section.
For a quiz where you need to drag and drop images or videos you need to 'drop' the item into the grey box.
If you are having a different problem, please try refreshing your screen.
If your video is not working - we have identified two potential issues:
1) The video hosting website does not appear to want to play catch with Internet Explorer but Chrome can play catch all day -- Please have a go on Chrome
2) During Quizzes, you have to have an always-on connection - using a wired connection to the internet or move closer to the router often fixes this niggle
If you are still having difficulties, please email us, preferably including a screenshot of the issue.