I'm running 10.3.3 and all of a sudden am getting duplicate icons on the Desktop. If I drag an icon from one position to another, the action may duplicate one of the other icons on the Desktop (so there are 2 or more icons representing the same file). The duplicates also appear when I look at the Desktop in list view. If I delete one of the duplicates, the others disappear also. Only one seems to be in the Trash, but if I then drag that back to the Desktop then both reappear. What's going on and how can I fix it? Thanks for your help!