I have added a rollover area to my quiz, which shows up once the user rolls their cursor over the image on the right hand side.
It is coming up as you can see, but the quiz question and answers show through.
Is there a setting to fix this or do rollovers and slidelets just not work properly in quiz's?
Standard quiz slide objects are always on top. You cannot change the order of these objects on quiz slides like you can on other slides. So you'll need to make your rollover caption smaller and place it on screen so that it does not show up under the other objects.
Which version of Captivate do you use? I had answered a question about rollover images on question slides in the other forum, with a screenshot of rollover images that didn't have transparent pixels, and they covered up the question slide objects. I had only to be sure that the rollover area could be reached by the user, was not overlapping (too much) with a regular question object. Will try to insert a screenshot, but have issues with this forum, not possible to insert images any more for me, will try in another browser and eventually edit this comment. Perhaps have a look at http://captivate.adobe.com/captivate/topics/rollovers_in_question_slid es
With IE I can insert: here is a picture with the rollover diamond (bigger here) during preview.