AD and changing backgrounds question

[Uhtred]

Hi there, as an experiment we are trying to change the background for our users when they login. This works fine but what I notice is that the shadows behind the icons are visible, like so…



is there any way to get rid of this?

 

[Uhtred]

it's xp, drop shadows don't make any difference and normal wallpapers work fine, it's only when we use active directory to force the wallpaper change that the problem happens