Spell check is not finding any mispelled words at all

Spell check is not finding any misspelled words at all when there are lots of them!

I am running windows 7 and Version: 4.1.5.3.

Thanks

@InalienableWrights – Please have a look at this check list, with regard to your applied language(s).

@manj_k - I think your answer is perfect. Would it be possible to make your comment an answer? This would flag the question as answered.