and you should se Arrange Icons in the context menu.
DESELECT whatever has been selected so none are selected. Now arrange them as desired.
Now, look for a handy little utility named WinTidy 2 by Neil Rubenking - http://www.pcmag.com/article2/0,1759,90193,00.asp
Just got my machine back after a crash and a fix. I have many icons on the desktop and they have specific places I want them to remain. Several of them will move on their own, usually going to exactly the same place. I have them aligned to a grid just as I had before the crash but that doesn't seem to keep the gremlins from moving them. Any ideas of a fix? It's always the ones that I continually use.