This applies to Word 2007.
Ok so I've been working on this document for days. Everything'ss gone ok so far. But I just went to save and it told me "A file error has occurred." It will not let me save in the docx format, however it will let me save as a Word 2003 doc file. Luckily I manually save almost every minute. What is causing this? Can I get it resolved? Docx is preferred here.