OK, so I changed the icon file name in the app's info.plist file to a file name that I have added to the target's resources. Just like I've been doing for iPhone apps. But the icon in the dock on my Mac doesn't change, it is the generic paper/pencil/ruler/paintbrush icon. If I go into the App About... the icon is the correct one that I set. What am I missing? I am using Xcode 3.2.5 and running OS X 10.6.8 Thanks. ---------- I guess the dock icon does not change when doing a Debug build, only Release build.