I keep getting the error message in the title when saving any document in Pages. I really can't lose what's been written, so I'd rather not close it and have to reinstall. It's not a permissions issue, as I am trying to save it to Dropbox, and it's not a Dropbox issue because it won't let me save it to my local drive. Is there anything that could be put into a document that would keep it from saving properly? Thanks for any help. I'm on Lion, MBP early 2008. Pages '09 v4.1.