HELP! Offering different Vignettes

HI! I am creating a survey that has approximately 30 questions and I have one task that I cannot figure out.

One of the questions (Question #5) has a photograph and there are 4 different options for this photo. I have tried to figure out how to randomize the vignettes so not all participants receive the same photo/vignette. I know it is probably simple but I cannot figure it out. Can anyone tell me how I set this up so different users get one of 4 vignettes. As it is right now I created 4 questions with a different code and they are all under a group labeled vignettes.

When I click on Expression Manager, I get a blank screen.

HELP!

Connie

not done it myself but maybe these two links can help you:
www.limesurvey-consulting.com/how-to-ran...a-limesurvey-survey/

manual.limesurvey.org/Expression_Manager..._of_the_questions.29