When you can't read the writting because it's so bright compared to the bg. Like white text with a black bg, it messes with my eyes. Or red with green, purple with yellow, orange with blue.
Hang in there! cram between classes, I've been doing it all week, or while you'r getting ready for school have someone quiz you, and cram right before you take the test!
When the person has a picture behind the story area, and I can't read it. Also, when someone uses the fantasy font in a tiny little size that is unreadable.