My desktop keeps refreshing automatically. Even if I'm not doing anything on it, after about 1 minute, all of the icons will disappear then they all apear again like nothing happend. Nothing else seems affected by this, but if I have a Finder window open, it gets closed. When I am on another program and when it refreshes, it brings me onto the finder instead of program I am on, which gets annoying after a while. If I am trying to copy some files on the finder (like from one folder to another), when it refreshes, it stops the copying. Can someone help to to figure out what is causing this and how to fix it??