Why do you release "upgrades" that don't work? In the past, we posted ONE comment that was returned with quizzes for all respondents. This year, you decided to "improve" the program by supplying options for different comments. But I can't edit or delete some of the comments I made in the past, which will be distrubted to students who answer correctly. In one case, that means that students will receive incorrect information about how grades are calculated. Even though the correct information is in the syllabus, these comments provide IN WRITING a basis for grade appeals. Thanks so much for causing me these problems. The longer I use CANVAS, the more I hate it.