Because you are pasting off of Word. Word's apostrophes and AG's are two very different things. For one, AG does not support Word's attempt at apostrophes. Generally it is considered a good idea to paste the text to notepad, or write in notepad and get a browser spell check and go from there.
I think what Khaotic meant was that he typed the original in AG, then copied a version into Word. Word caught any mistakes, and then he edited the version on AG to match. You end up with the same affect, minus the funny symbols.
And for future reference, I would only make one thread for all your stuff. Things end up less cluttered that way.