It used to be that when i did a spelling and grammar check and told it to ignore certain things such as sentences it perceived as fragments or errors that were not really errors, that instruction...

It used to be that when i did a spelling and grammar check and told it to ignore certain things such as sentences it perceived as fragments or errors that were not really errors, that instruction stayed with the document, and it didn't keep coming back. In Word 2011 for the Mac, I can tell it to ignore something, but when I send the document to a client, or when I get it back, it's flagging those errors again. Why I can't I get it to ignore forever things I have told it to ignore? This actively makes the product worse.