Cheating the test

Hello all,I have just been looking at some of the posts and already found a great deal of knowledge and experience out there. That is why I decided to join up.I wonder if anyone has encountered the same problem as me, or if you can help.I am using lectora 2006 and have created some sessions albeit pretty basic. I normally use an external site to host my programmes and they are connected to a LMS. Some of my users however have worked out that if they get a question wrong and read the feedback given, they can use the browser back button to reset the question and therefore enter the right answer. My question is is there anyway to disable / hide this function when a course is launched or do I have to learn to accept this as one problem with eLearning?