My issue is a little strange. Sometimes when I'm writing a lot on a page (A4 size), filling it with math problems, for example, my notes "move" to another part of the page. This is really annoying because quite often they jump to a part with other writing on it, making both sets of writing incomprehensible. This usually happens most often when I have a LOT of lines on a single page. I'm not moving them myself. I'm just writing and writing and writing, and I look up and some of notes at the top of the page have jumped way over to the right, or down the page, or something. Any ideas?