active desktop wallpaper appearing enlarged at lock screen

Hi, i recently applied active desktop wallpaper in my environment using GPO. The desktop at the wallpaper is okay but when on some systems when users lock the screen, the logo appears enlarged but some systems it is okay. Any idea>?
Shankar3003Asked:
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digitapCommented:
Try this as a test.  When you press CTRL+ALT+DELETE and press Lock Computer, the previous wallpaper is displayed behind the dialog box?

This is an Active Desktop issue. The Explorer.exe shell displays additional layers on top of the desktop, such as the Start menu, desktop icons, and Active Desktop.

When you Lock Computer, these layers are cleared, revealing images that are set on the desktop, the old wallpaper.

To resolve the problem, set the standard desktop wallpaper to None. Then select the Active Desktop image that you want to use.

When you Lock Computer, the backgrounds color will be displayed, with no previous image.

If this is what you see, then they must have the image as their wallpaper and it's set to stretch or something.
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fuzzyfreakCommented:
Could be a video driver issue, update the driver on one machine and see if that makes a difference.
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Shankar3003Author Commented:
hi , i need to create a script which sets registry value of windowsstyle to 0 as 2 is stretched.

Going forward, i need to create a script to set wallpaper to all desktops in my environment without using active desktop gpo settings. Is there a way to set the desktop wallpaper and users will be still free to change the wallpaper?
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digitapCommented:
Instructions:

1. Save your wallpaper file as mywallpaper.bmp in %systemroot% (i.e. c:\windows, in most of the cases)
2. Run below script

I can't take the credit for this.  Here is the website I referenced:

http://www.pcreview.co.uk/forums/thread-1532181-2.php
'----------------------------Script Start -----------------------------------------------------
Dim WshShell
const HKEY_CURRENT_USER = &H80000001
strComputer = "."
Set WshShell = WScript.CreateObject("Wscript.Shell")
Set StdOut = WScript.StdOut
Set oReg=GetObject("winmgmts:{impersonationLevel=impersonate}!\\" &_
strComputer & "\root\default:StdRegProv")
strKeyPath = "Control Panel\Desktop"
strEntryName = "Wallpaper"
strValue = "mywallpaper.bmp"
oReg.SetStringValue HKEY_CURRENT_USER,strKeyPath,strEntryName,strValue
WshShell.Run "%systemroot%\System32\RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters", 1, False
Set WshShell = Nothing
'--------------------------Script End -----------------------------------------------------------

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Shankar3003Author Commented:
good solution
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digitapCommented:
thanks for the points!
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