When I open my canvas on my laptop my Dashboard just looks like it is continuing to load and I can not open any of my courses. When I go through the courses on the left hand side I can open them, but say the Grades tab will open but have a completely blank page or the Quizzes tab will open and be a blank page. I have tried to log out and refresh yet nothing changes. I can open Canvas on my phone and on others computers, but not mine. I have just tried to start a quiz after opening it through the home page but since the quiz is under the Quiz tab I was unable to start it. Why is this?