I am preparing a disk image of an application for distribution, and want to get it right. I have added my app and an alias to /Applications with large icons. The background of the folder instructs the user to drag the icon to the alias. There is even a graphic in the background. I have aligned the icons, and resized the folder before creating the disk image. However, when I open the .dmg, the icons are put in the top left corner, and in alphabetical order! How do I get them to stay put?