My computer has three users: administrator and two others. I'm the administrator, the other two are my roommates. Each has a different desktop theme: the roommates each have a slideshow (each is different), and the admin has a single photo. That's how it's been for a year. Suddenly, one of the users' background has become tied to the admin background. When I change one, the other also changes to match. It doesn't matter if I change it as admin or as the other user -- whichever changes, the other changes to match. ANy idea as to what is going on, and how to get it back to "normal"?

This issue occurs if the user profile is corrupt. You may consider to create a new user account for him to replace the problematic one.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.