Hi, I was testing a course on our LMS portal when I started recieving this error. After answering 3 quiz questions I'd proceed to exit the course. After returning to the course and continuing from where I last left off all of the quiz radio buttons dissappear. This only happens on packages published by my computer so I assumed there was an issue with my registry, or some conflicting program settings from other software or adobe products. I uninstalled everything and restored my machine to factory settings; then I reinstalled only Powerpoint and Presenter 8. After uploading the new published course the error still remained. Thanks for any help you can provide.