my live mail won’t capitalize i or first word of sentence. I have refreshed the settings in options but it still doesn’t work. Any other suggestions?

I checked the Options tab and refreshed the check marks for capitalizing first word of sentence and also I and combinations of I'm, etc. Clicked apply and OK, But it still doesn't work. Is this a flaw in latest version of Windows Live Mail? I had to reload my computer the other day and everything else is working properly but WLM is letting me down. Help or suggestions welcome. Is there a way to refresh the options by reloading Live Mail (and then i would probably lose my addresses...)  HELP!