Proper case didnt show up on site

I think this is a good plugin. The button mentioned show right up! But I guess it was not quite what I am looking for.

My Page and Post Titles show up proper case (First letter of a sentence capitalized) during edit. But when I preview the site, every thing is still capitalized! The logo title is in all caps, the page and post Titles are in all caps. I wish there was a way to get proper casein these three areas when in preview mode.

please let me know.

thanks!