Katie edits her student's papers using Microsoft Word on a Mac, and now after a new update, the formatting is all screwed up in a Windows version of Word. Leo says that in theory, Office should be the same cross-platform. That's the point. But it's possible that typefaces may not be compatible in Windows that are in Mac, and vice versa. Her printer setup may also throw off the formatting. Office formats the document to look as it does on the printed page, and if she got a new printer, that could alter the format. So she should change it to a generic printer format.