Why does the text in title bar of New message on Nokia device partly disappear as dim characters?

There is not enough space to display the whole text in the top bar in New message. The same problem might appear in some Web pages. That is why the title is partly visible and the couple of last characters which can be displayed are dim. The text should still be understandable.

This appears with the following devices: Nokia E5-00, Nokia E63, Nokia E71, Nokia E72, and Nokia E73.