We have a background pushed out to a generic user named "students". We did
this with a User Package - Windows Desktop Preferences. This is associated
to "students".

The library would like a different background for about a month. Users
login to those Pcs with the "students" login.

How can I segregate those PCs to get a different background?
I am pretty sure policies get invoked by Users getting priority, then
Workstations, then Groups. Is this correct?

I'm thinking maybe we can push out the backgrounds with app objects and
associate the 2 different backgrounds with the workstations or groups.

Ideas anyone?