bug#6609: 23.2; Cursor becomes invisible when put over some faces

[Eli Zaretskii]

> From: Deniz Dogan <deniz.a.m.dogan@gmail.com>
> Date: Sun, 11 Jul 2010 13:25:03 +0200
> Cc: 
> 
> I'm using Windows 7 and GNU Emacs 23.2.1 (i386-mingw-nt6.1.7600) of
> 2010-05-08 on G41R2F1.
> 
> Steps to reproduce:
> 1. Make the following the only contents of your .emacs:
> (set-foreground-color "black")
> (set-background-color "white")
> 2. Move the cursor over text with the "default" face.
> 3. Notice how the cursor is now effectively invisible.

What exactly does "effectively invisible" mean?  Do you see it or not?
How about a screenshot?

> This happens on Windows Vista as well.
> 
> It also seems to happen when text has the "button" face, as seen in
> e.g. the *Help* buffer sometimes.

I can reproduce neither of these on Windows XP.  (I don't have access
to W7 or Vista with development environment.)

What does Emacs show if you type "M-x describe-face RET cursor RET"?

Do you have some non-standard color schemes defined on those systems?