The Tools menu is (unless you've changed it) the 5th menu item on the top of the screen. The Language menu is the third item from the bottom of the Tools menu. English is the 4th item in the Language sub-menu.
You may have changed your fonts to Wingdings or something like that. Go to the Tools menu (as above), then Options (the very last item in the Tools menu). Then, select Tree & View (the very last item in the list in the left hand area of the Options dialog) and in the right hand area Select Font, which is the very last item in the right hand area of the Options dialog (once you've selected Tree & View).
Hope this helps.