We have a number of laptops wireless connected to our domain.
Under normal circumstances, from a normal workstation, when a student logs on they would pull policies from their STUDENT OU which includes a custom desktop wallpaper.
These laptops, however, have their own WLAPTOPS OU in which the laptop computer accounts sit. When logged on, they pull their own policies including a different desktop specific to the laptops.
Recently, these laptops have pulled everything from this OU correctly, apart from the wallpaper. The start menu is correct. The desktop items are correct but only the wallpaper is wrong.
Removing the laptops from the WLAPTOPS and putting them with the rest of the computer accounts, they do as they're told and pull policies from the STUDENT OU whenever a student logs on. Stick them in the WLAPTOPS OU and they get nothing.
To find out what could be wrong, we created another OU to put the laptops in. Altered the required wallpaper and put the laptops in there.
Correct Start Menu. Correct icons.......... STUDENT desktop!!!
WHY would they stick to the OU policies they should APART from the desktop wallpaper?!
Check the file ize of the wallpaper you are using. I have had a similar issue when using certain file sizes for wallpaper on wired desktops. The wallpaper shows at the top f the screen for about 20 cm and thats it, but a simple refresh F5 and all is well. I found that it was the size of the wallpaper file.