Windows 7 Desktop Background when Computer is Locked

[GarTex]

I am running the RTM build of Windows 7 and cannot figure out how I can choose the desktop background when I Lock the computer.

I have my own custom theme, and several otehr personalizations but can't find where to do this...

Any ideas?

 

[Tip-Top]

I belive you are looking to change the Log-on screen/Lock screen this will help you choose whatever you want for it
Tweaks.com Logon Changer for Windows 7

 

[stueycaster]

Here's a way to do it without adding any new programs.

How to customize logon background/screen in windows 7 « Windows 7 Home

 

[phospanun]

I do agree with you. Those are the most effective way

 

[John Bryntze]

You can do it with just a registry change:
Windows7-kb2 Change login background image - JBKB