The language drop-down list problems.
Basically there are two areas where one choose the language.
There is a button on the menu bar
which essentially does nothing.
But which is something which most people will use to choose the language!
Where as the major control he is in the right hand.Taap most area where you choose the keyboard,
and the language. If previously one chose Telugu at the right hand side top corner, and then tried to choose a different language using the button on the menu bar. It will still type Telugu.
intended use of the button is different
The button you are talking about changes the language of "selected text" phonetically. For example, as explained in user guide, you copy a verse of gita in sanskrit but want to read it in your language. You select the verse and change its language using the button.