It's not a bug, it's how Windows works. The Welcome Screen is just a window displayed on top of an ordinarily black desktop. You can see this black desktop if you have a multi-monitor set-up. Microsoft chose black because then you can't tell when the system finishes booting and when the welcome screen has started. If you disable the Welcome Screen and use GINA instead you'll see the wallpaper behind the logon screen. Hi, Thanks for your reply. I have disabled the Welcome Screen. But, can you tell me how to replace the new bliss wallpaper by the one I use on my desktop as background? So that I have one wallpaper all the way? Kind regards, Piet