do the following:
(global-auto-revert-mode)
(setq global-auto-revert-non-file-buffers t)
then M-x list-buffers
now open a file and move down a page at least. the file begins auto-recentering. the line with the cursor moves toward the center.
Emacs with -Q
GNU Emacs 24.4.1 (i686-pc-mingw32)
of 2014-10-24 on LEG570
Windows 8.