Change wallpaper on lock screen

[Gonzalo Marcote Peña <gonzalomarcote gmail com>]

Hi.

This is my first mail to this mailing list, so greetings to everyone.

I am using gnome3 in Deban wheezy (3.4.2.1-1). In the last update it changed the wallpaper (background) of the lock screen by one that I dont like at all.

So my question is:

¿How can I change the wallpaper of the lock screen in gnome3?

The las update did it, so sure I could change it me too ;)

Thanks and regards

Gonzalo