.entry-header {
display: none;
}
worked fine for me, since I wanted to remove the title from all pages.
I had resolved the issue by editing my page.php file, but am much happier with WPyogi’s custom css approach. Thanks for posting that!
Theme author – since a lot of people appear to be struggling with this, maybe you can add an option to turn off page titles in your next update, as many themes already do.