<<<Between Mac Office and Windows Office? It is really important to be clear about that.
Are the missing characters both Chinese and English? If Chinese, what font are you using? Mac Office should come with fonts totally compatible with Windows Office.>>>
I was told that compatibility between mac office and windows office will present no problem. I started using mac office, as I will be printing and sharing with people using windows. When I open the same file for printing, i see missing images, changes in some characters, sometimes event a question mark is gone and turn into square, or arranged differently. Tried using Arial, TImes New Roman, other common fonts, same with the Chinese fonts. Just couldnot get the same exact file. In the end I had to produce a document from older notebook using windows system.