I'm using the iPad and pencil to write on student work (annotations on a PDF file). I cannot see the same page of work on the iPad that I can on the computer - which I've gotten used to - but often when I make a note on what I CAN see, the comment is placed elsewhere on the page. Additionally, when I enter a score that same score doesn't appear on computer page in Speed-grader. Anybody know what I'm doing wrong?