Hello I have a 2013 MB Pro 13" with the latest Mavricks. I have this problem since the first day i had it. Every time i drag an icon / folder on my desktop, it places it randomly on different location as i put it, sometimes half of the icon is out of the desktop limits. Its a minor problem but it is very annoying. I posted a screen shot as an example. Tried snap to grid and accours again. Tnxxx in advance.