bug#14721: slow scrolling on windows 7

[Eli Zaretskii]

> Date: Tue, 25 Jun 2013 21:38:36 -0500
> From: Mario Valencia <mariovalspi@gmail.com>
> 
> If i keep PageUp or PageDown pressed on a buffer, it does not redisplay the
> screen fast enough. Only when I release the key, will it update the screen.
> I have had this problem since previous versions of emacs on windows.

Does it happen with any file you visit, or just with some?

Does it happen in any major mode, or just with some?

Does this happen in "emacs -Q"?