My spelling is set to british english. I have added no words to the dictionary. Yet it is always correcting me on words that I have spelt correctly. For example I just wrote example and it is underlined in red and its suggestion is example is 'exumble'. I have never added this, nor another words. I'm not a fool and I'm able to spell basic words. Just now the word 'basic' was suggested as 'baic'. Any ideas what on earth is going on? Once again the word 'ideas' was suggested to be 'idears'. Interestingly when I wrote 'idears' it auto corrected it as the correct spelling. Is OSX playing a joke on me? Cause I'm not laughing. I write many documents and it is making basic tasks a total pain.