Dotan Cohen:
Patrick, not all of us are native English speakers. Theose grammer checkers are especially important for us who might be able to express ourselves in English, but need to present a professional appearance.
Patrick:
Exactly my point. If you want to present a professional appearance, do not rely on the grammar-checking in MS Office to get you there. Nothing replaces checking with a Harbrace (or a native speaker) when you need to make sure that what you are sending is grammatically correct.
I'd go along with that. I am a native English speaker, and I've found word processing grammar checking tools leave a lot to be desired. Some of the results, I've seen, give you the impression that a 12 year old wrote the document. They might find some glaring errors, but more subtle ones go un-noticed.